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Adaptive Combat Rifle
Adaptive Combat Rifle
Adaptive Combat Rifle
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The Adaptive Combat Rifle (ACR), known initially as the Masada is a modular assault rifle designed by Magpul Industries of Austin, Texas.

Key Information

In late January 2008, Bushmaster Firearms International entered into a licensing agreement with Magpul whereby Bushmaster would take over production, future development, and sales of the Masada.[7] The Magpul Masada was then known as the Bushmaster ACR. However, Remington Arms is contracted to manufacture the rifle for the U.S. military and law enforcement agencies, in which it is known as the Remington ACR. Hence, Remington Arms is responsible for the selective-fire variant of the ACR, while Bushmaster Firearms International is responsible for the semi-automatic only variant.

The Remington ACR was one of the carbines displayed to United States Army officials during an invitation-only Industry Day on November 13, 2008. The goal of the Industry Day was to review current carbine technology prior to writing formal requirements for a future replacement for the M4 Carbine.[8][9] The Remington ACR was also part of the Individual Carbine competition to replace the M4.

History

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Origin of the Magpul Masada

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The original Magpul Masada's design represented a combination of several recent assault rifle designs, incorporating what was considered by its designers to be the best features of each in a single, lightweight, modular rifle.[10] Design features from the Armalite AR-18 (short-stroke gas system), the FN SCAR (upper receiver, charging handle location), the Heckler & Koch G36 and XM8 (wide use of polymer components), and the M16/AR-15 (trigger pack, barrel, fire control group) were present.[11] Some claim that the bolt-catch/release was inspired by, or copied from, the Robinson Armament XCR (which was developed as direct competition to the FN SCAR during the SOCOM SCAR program).[12] The rifle also included several features developed by Magpul, such as a quick-change barrel/trunnion system, adjustable gas regulator, non-reciprocating charging handle, and storage compartments located in the stock and grip.[13] Just prior to the deal with Bushmaster, Magpul made additional changes to their design, the most obvious of these was the relocation of the ambidextrous operating handle to a forward position (somewhat similar to the Heckler & Koch G3 and Heckler & Koch MP5). The rifle's caliber could easily be changed by replacing the bolt head, magazine, and barrel.

The ACR was originally named after the Siege of Masada. Magpul company literature about the rifle states that "Magpul Industries is neither Jewish-owned nor Israeli-backed; however, Magpul has always found the story of Masada as a bold example of defiance".[14] When production rights were signed with Bushmaster, the Masada name was dropped from the product.

Bushmaster and Remington acquisition

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A Colorado Ranger practices firing the ACR

In January 2008, the design of the Magpul Masada was licensed to Bushmaster Firearms International and the production version of the Masada became known as the Bushmaster ACR.[15]

The ACR was initially developed over a period of five months and was planned to replace the M16 completely independent of government funding. Prototypes were displayed at the 2007 SHOT Show in Orlando, Florida. Originally scheduled for release in the second quarter of 2008, Bushmaster announced on May 16, 2008, that the consumer release would be delayed until the first quarter of 2009, owing to a focus on military projects.[16] On November 18, 2008, Bushmaster released a statement saying, "The ACR is being redesigned to be a superior offering to compete for the next generation U.S. Army infantry carbine and subcompact weapon requirement and will be available to select customers in 2009".[17]

Bushmaster Firearms, with the help of Remington Arms, (a sister company in the Freedom Group, Inc. portfolio that includes Bushmaster, Remington, Marlin, and DPMS Panther Arms brands) have also made extensive design changes based on extensive environmental and functional testing specifically to meet the emerging requirements of the U.S. military in both the carbine and subcompact rifle versions of the ACR family. They made sure that the ACR will be capable to endure certain conditions such as exposure to sand, dirt, mud, and water.

The initial design of the ACR was offered in the Army's Individual Carbine competition.[18] In late 2011, Remington unveiled an improved version specifically for the competition. Improvements included a magnesium lower receiver, A2-style pistol grip, collapsible but non-foldable stock, carbine length gas system, a new barrel nut (which eliminates the quick change barrel), and a folding charging handle. These changes made the weapon 1.8lbs (.8kg) lighter.[19] The Individual Carbine competition was cancelled before a winning weapon was chosen.[20]

Remington also unveiled a sub-compact variant called the ACR-C Personal Defense Weapon (PDW). This version retains the features of the Individual Carbine variant, except that the folding stock was kept and the barrel was shortened to 9.5 inches. With the stock folded, it is only 19.5 inches long.[21][22] Remington has replaced this variant with the ACR-PDW.[23]

In January 2014, Bushmaster unveiled a designated marksman rifle version of the ACR. It includes the Magpul PRS adjustable stock, a longer 18.5 in (470 mm) full profile 416 stainless steel melonite coated barrel (that retains the carbine-length gas system) with 1:7 inch rifling twist, and a Geissele enhanced trigger. The DMR ACR weighs 8.75 lb (3.97 kg) and has an MSRP of $2,799.[24]

Availability and recall

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The ACR was stated to be available in the second quarter of 2010 for military, government, and commercial customers. It was available in greater quantity (tens of thousands) in the commercial marketplace in 2010.[16] According to an official press release from Bushmaster, the rifle had a suggested retail price between $2,685–$3,061.00,[25] twice as much as early price quotes of "around $1500". The revelation caused public outcry and dismay of the rifle from a large portion of the firearms community and potential civilian end-users. Semi-automatic versions are available to the commercial market from Bushmaster, and selective fire versions are available for military and law enforcement under the Remington name.[14] As of April 2010, civilian market rifles were available for sale.[26]

On October 15, 2010, Bushmaster issued a recall of all ACR rifles, instructing users to "Please immediately discontinue the use of your ACR rifle" along with instructions to contact customer support for an RMA. Bushmaster stated that the recall was issued due to "a possible firearms performance issue that may develop with a small number of ACR rifles" and goes on to state that "Bushmaster discovered a design flaw which could result in multiple rounds firing continuously when the trigger is pulled". Bushmaster has stated that it will cover all of the costs associated with repairs to recalled rifles.[27]

Difficulties

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In 2020, Freedom Group declared bankruptcy,[28] forcing it to close both Bushmaster and Remington.[29][30] The closures also ended plans to market the ACRs by both companies.[30]

Emergence

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In 2021, Bushmaster announced that they are open in Carson City and are working on reintroducing the ACR.[31]

Operational Use

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The Bushmaster ACR was known to be used in 2012 by Polish soldiers under the Służba Wywiadu Wojskowego (Military Intelligence Service).[32][33]

Marketing

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In October 2023, it was reported that Remington signed a previously undisclosed deal with Activision to have the Remington ACR promoted in Call of Duty: Modern Warfare 2 in 2009. According to the Wall Street Journal, no money was exchanged as part of the agreement.[34]

Design details

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Remington ACR

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The Remington ACR is a gas operated, selective fire rifle only available for the military and law enforcement market that features a modular design. It has several features of other recent designs, such as the M16 and FN SCAR.[35] The ACR's modularity allows the user to change the bolt head, barrel, and magazine in order to switch calibers. Remington released the ACR in 5.56×45mm NATO, then later produced a 6.8mm Remington SPC conversion kit, and a 6.5mm Grendel conversion was planned but was never produced.[36][37]

All of the ACR's parts can be easily stripped for cleaning and all of its controls are fully ambidextrous.[35] A three position (safe, semi-auto and full auto) fire selector lever is located over the pistol grip. A charging handle can be installed on either side of the receiver and does not reciprocate when the weapon is fired. Magazine release button is also ambidextrous. Spent case ejection port is located on the right side of the receiver, however it has a case deflector, which propels the cases away from left-handed shooters.[35]

The ACR can also be configured for different handguards, stocks and trigger groups. Stock options include a fixed adjustable (in terms of length of pull and cheek weld), folding adjustable (folding and six-position telescoping), and sniper stock based on the Magpul PRS stock. The Remington's handguard model has a five-sided aluminium handguard that can be user configured with MIL-STD-1913 rail elements, while the Bushmaster's model is polymer with heat guards and attachable aluminium tri-rail.[3][26]

The magazine designed for the 5.56×45mm NATO version of the rifle is called the Magpul PMag, a high-impact, 30-round, polymer magazine claimed by Magpul to be significantly more resistant to wear, shock, and harsh environments than other counterparts on the market. The PMag is STANAG 4179-compatible, as it will readily fit any STANAG magazine firearm, including the M16 rifle family.[10]

The rifle is available with four barrel lengths and can be easily converted from a standard rifle (with a 16.5 inch barrel) into a carbine (with a 14.5 inch barrel), into a compact rifle (with a 10.5 inch barrel), or into a designated marksman rifle (with an 18-inch barrel) without any tools. Barrel lengths of the two calibres are exactly the same. The Barrels are hammer-forged and hardened with a nitriding process rather than having chrome plated bores as some other rifles.

Bushmaster ACR

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The Bushmaster ACR is a gas operated, semi-automatic rifle of modular design. It utilises an aluminium alloy upper receiver, with polymer pistol grip, trigger, and magazine housing (lower receiver) unit which is attached to the upper receiver using cross-pins.[38] It is available for the civilian market in 5.56×45mm NATO, 6.8mm Remington SPC and .450 Bushmaster via conversion kits.[11] A 7.62×39mm conversion kit was done by Templar Precision.[30]

The trigger/manual safety unit is made as a single removable item, and mostly utilises AR-15 compatible parts. The rifle features a quick-detachable barrel, with its own short-stroke gas piston attached. To remove the barrel (for change, inspection, or maintenance), the operator has to remove the polymer handguards, then swing down the wire lever which is located below the barrel, and then turning the barrel to unlock and pull it forward and out of the receiver. All barrels are free-floated within the handguard to achieve consistent accuracy. The barrel is like an AR-15 barrel with a resized gas port and a thin profile for the piston support. The bolt group also is made as a single unit, with captive return spring and rotary multi-lug bolt which locks directly to the barrel breech.[38]

The standard magazine housing, which is suited to accept AR-15 type magazines, has ambidextrous magazine release buttons. The ambidextrous bolt stop release button is located at the front of the trigger guard. Safety lever is also ambidextrous, and charging handle can be installed on either side of the rifle. It can be equipped with various Magpul-made buttstocks, fixed or side-folding, and adjustable for length of pull (some also with adjustable cheek rest). It can be fitted with removable iron sights and/or with any optical- or night vision- sights, all depending on the user's preference or with the configuration of the rifle. It also has an integral Picatinny rail on the top of the receiver and additional accessory rails can be installed on the forend according to user preferences.[38]

The Bushmaster's handguard model is polymer with heat guards and attachable aluminum tri-rail, while Remington's model has a five-sided aluminum handguard that can be user-configured with MIL-STD-1913 rail elements.[3][26]

Variants

[edit]

Remington ACR

[edit]

The Remington ACR is a selective-fire modular rifle that is only available for the military and law enforcement market in 5.56×45mm NATO, and a conversion kit available in 6.8mm Remington SPC.

ACR – 14.5 in (368mm) barrel, 16.5 in (419mm) barrel.[39]

ACR-PDW – 8.25 in (210mm) barrel, 10.5 in (267mm) barrel.[40]

Bushmaster ACR

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The Bushmaster ACR is a modular semi-automatic rifle that is available for the civilian market in 5.56×45mm NATO, 6.8mm Remington SPC, .450 Bushmaster and .300 AAC Blackout.

ACR BASIC – 16.5 in (419mm) barrel.

ACR ENHANCED – 16.5 in (419mm) barrel.[11]

ACR DMR – 18.5 in (470mm) barrel.[41]

ACR SBR – 10.5 in (267mm) barrel.[42]

Users

[edit]
  • Poland: Bushmaster ACRs are used by the SWW (Military Intelligence Service).[43][33] The ACRs are equipped with 266 mm or 368 mm barrels, EoTech XPS3 holographic sights, Laser Devices DBAL-A2 laser sights and Magpul P-Mag magazines.[33]
  • Ukraine: Remington ACRs are used by Armed Forces of Ukraine during Russo-Ukrainian War.[1]

See also

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References

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[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Adaptive Combat Rifle

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from Grokipedia
The Adaptive Combat Rifle (ACR) is a modular, gas-operated platform originally developed by Magpul Industries as the Adaptive Combat Weapon System and subsequently produced by . Introduced in 2008 after a rapid five-month development period independent of government funding, the ACR emphasizes adaptability through tool-less barrel changes, caliber conversions (primarily with kits for others like 6.8 SPC), and interchangeable components such as stocks, grips, and rails, enabling reconfiguration for various combat roles. While praised for its innovative polymer lower receiver, cold-hammer-forged barrel, and short-stroke gas piston system that reduces fouling compared to designs, the ACR saw limited military adoption and faced production challenges following ' acquisition of Bushmaster, including a 2010 recall for enhanced models due to safety issues and eventual discontinuation amid corporate bankruptcies.

Development History

Origins in the Magpul Masada Prototype

The Magpul Masada Adaptive Combat Weapon System originated as the first complete firearm design from Magpul Industries, a company previously focused on polymer accessories for rifles like the AR-15 platform. Conceptualization had been under consideration by company leadership, including CEO Mike Mayberry, for up to a decade prior, but active development began in earnest in fall 2006 after Magpul abandoned plans for an M16/M4 retrofit project in March of that year. The effort was led by Mayberry, with contributions from a core team including Richard Fitzpatrick, Eric Nakayama, Brian Nakayama, and Drake Clark, who drew inspiration from the AR-18's short-stroke gas piston mechanism while incorporating ergonomic and modular improvements over existing systems. Designed independently of government funding or military specifications, the aimed to produce a durable, reliable capable of serving as a direct replacement for the M16 family, emphasizing user familiarity with AR-style controls alongside enhanced versatility. Key initial features included a quick-change barrel system for caliber swaps—supporting options like , , and 6.8 SPC via bolt and magazine changes—a non-reciprocating side-mounted charging handle, and adjustable gas settings for suppressed fire. The prototype's construction utilized injection-molded for the lower receiver and handguard, prioritizing lightweight and ease of field maintenance without specialized tools. Development proceeded rapidly from initial sketches to functional pre-production prototypes in approximately three to four months, reflecting Magpul's iterative prototyping approach using CAD modeling and in-house machining. The name "Masada" evoked the ancient Jewish fortress's stand of defiance, symbolizing the rifle's intended resilience in combat scenarios, though Magpul clarified the company had no Jewish ownership. The prototype debuted publicly at the January 2007 SHOT Show, where it garnered attention for its ambidextrous controls, folding stock, and potential for full-auto conversion, positioning it as a forward-looking evolution unbound by legacy direct-impingement limitations.

Licensing and Production Agreements

In late January 2008, Magpul Industries licensed its Adaptive Combat Weapon System to , enabling Bushmaster to produce, develop, and market the design under the name Adaptive Combat Rifle (ACR). The agreement transferred manufacturing rights to Bushmaster, which incorporated enhancements such as a firing pin block and ambidextrous charging handle while retaining core features from the original . This arrangement allowed Magpul, primarily an accessories manufacturer without large-scale firearm production capacity, to avoid direct involvement in commercialization. Bushmaster, then part of the Freedom Group (later ), handled civilian production and sales through its facilities, with initial rifles entering the market in 2010 at a manufacturer suggested retail price of approximately $2,000 for the basic model. Concurrently, , Bushmaster's corporate affiliate, secured responsibility for military and variants, pursuing contracts such as those evaluated by the U.S. military for potential replacement of the , though none materialized at scale. The licensing terms reportedly included provisions for design rights reversion to Magpul under certain conditions, such as production cessation, which influenced later ownership dynamics following Remington's 2020 bankruptcy. No foreign licensing or production agreements for the ACR were publicly documented during Bushmaster's tenure, limiting output to U.S.-based facilities despite interest in international markets. Post-bankruptcy asset sales in 2021 transferred Bushmaster's intellectual property interests, but Magpul retained foundational patents, precluding new production deals without its involvement.

Initial Release and Early Production

initiated production of the Adaptive Combat Rifle (ACR) following its 2008 licensing agreement with Magpul Industries for the design. The rifle, rebranded as the ACR, was officially launched to the civilian market at the 2010 in , , on January 21, 2010, after delays from an initial planned release in 2008. Early production focused on semi-automatic configurations compliant with U.S. civilian regulations, chambered primarily in with a standard 16.5-inch barrel length to meet federal definitions. These initial models highlighted the ACR's short-stroke gas operating system and modular components, including quick-change barrels and adjustable gas blocks, positioning it as an advancement over traditional AR-15 platforms. Bushmaster marketed the ACR for its adaptability, with features like ambidextrous controls and construction for reduced weight, targeting and civilian shooters seeking reliability in adverse conditions. Production volumes in 2010 were limited, reflecting the complexities of scaling up manufacturing for the novel design, though demand was high due to pre-launch hype from the 2007 Masada prototype reveal. Retail prices for early ACRs ranged from approximately $2,500 to $3,000, depending on configuration, with accessories sold separately to allow customization. Initial user reports praised accuracy and in testing, with groups averaging 1 to 1.5 inches at 100 yards using match-grade , though broader field reliability data emerged later.

Manufacturing Challenges and Recall

In October 2010, Bushmaster Firearms issued a voluntary recall for a select number of Adaptive Combat Rifles due to a design flaw in the assembly. The issue, discovered during routine testing, involved the being excessively heavy, which could interact with primers in certain non-military-specification —particularly those with protruding or "proud" primers—to cause unintended multiple discharges or slam fires when the trigger was pulled once. This created a risk of the rifle functioning in a manner resembling uncontrolled automatic fire, violating federal restrictions on civilian possession of such capabilities. Affected owners were instructed to contact Bushmaster directly to verify serial numbers, as no public list was released; the company provided free repairs involving a lighter and reinforced spring, with a reported two-week turnaround time. Early production of the ACR, which began transitioning from Magpul's prototype under Bushmaster's licensing in 2009, encountered broader difficulties exacerbated by the challenges of scaling a complex for mass manufacture. Initial units suffered from inconsistent assembly, including loose receiver bolts and trunnions that could shift during firing, contributing to accuracy degradation and reliability concerns. These teething problems were attributed in part to Freedom Group International's oversight—Bushmaster's parent company—which faced systemic manufacturing inconsistencies across its brands, including suboptimal material treatments leading to premature rust on components. The rifle's quick-detach barrel system, while innovative, proved prone to loosening under sustained fire in early examples, further undermining user confidence. Compounding these technical hurdles were economic pressures from high production costs, with retail prices reaching $2,600 to $3,000 per unit—double initial projections—due to the rifle's polymer-heavy construction and precision tolerances required for modularity, which deterred widespread adoption and strained output volumes. Magpul's original development lacked the infrastructure for high-volume production, and Bushmaster's facilities in , struggled to replicate prototype performance at scale without iterative refinements. Reports from users and reviewers highlighted "lemon" units in the first production runs, prompting in promised conversions and accessories, as resources were diverted to address foundational defects rather than expansion. These issues reflected causal factors in rushed of an ambitious design, prioritizing military-spec compliance over exhaustive civilian-market testing.

Discontinuation and Aftermath

In October 2010, shortly after the civilian Bushmaster ACR entered the market, the manufacturer issued a voluntary recall for all produced units due to a design flaw causing semi-automatic models to fire unintended full-auto bursts, posing safety risks. Owners were instructed to return rifles for free inspection and modification, which disrupted early adoption and damaged consumer confidence. Production continued briefly under Remington for potential military and variants, but persistent manufacturing inconsistencies—stemming from shifts between facilities—and retail prices exceeding $2,600 per unit (far above initial projections of around $1,500) resulted in dismal sales volumes. No substantial U.S. military contracts materialized, despite initial optimism for replacing the , as the ACR offered marginal improvements in modularity and reliability at a premium cost compared to established AR-15 platforms. Civilian production effectively ceased by the early , prior to Remington Outdoor Company's 2018 filing. In the aftermath, the ACR transitioned into a niche collector's item, with surviving examples commanding prices often below original MSRP due to limited aftermarket support and waning interest. Bushmaster's brand revival in under new focused on conventional AR-pattern rifles, with no plans to resurrect the ACR, underscoring its commercial failure amid a market favoring customizable, lower-cost alternatives. The platform's innovative quick-change features influenced subsequent modular designs but failed to disrupt entrenched military procurement preferences or civilian buying patterns.

Design Principles and Features

Operating System and Gas Piston Mechanism

The Adaptive Combat Rifle employs a short-stroke gas piston operating system with a multi-lug rotating bolt, drawing inspiration from the Armalite AR-18 design to cycle the action reliably under varied conditions. High-pressure propellant gases are diverted through a port in the barrel—typically located similarly to AR-15/M16 configurations but adapted for the piston setup—into the fixed gas block forward of the receiver, where they act upon the piston head to drive it rearward a short distance of approximately 0.25 to 0.5 inches. This short-stroke motion transfers kinetic energy directly to the bolt carrier via an integral or contacting rod or lug, without the piston remaining attached or traveling the full length of the carrier, thereby minimizing reciprocating mass and heat transfer to the internal receiver components compared to direct impingement systems. The features multiple radial lugs that lock into the barrel extension, ensuring a secure chamber seal during firing; upon , the bolt carrier's rearward travel rotates the bolt to unlock, extract the spent case via a standard AR-style extractor, and eject it downward through an ambi ejection port, while compressing the recoil spring for forward return and chambering of a new round from STANAG-compatible magazines. The system's design accommodates quick-change barrels, each pre-fitted with its own gas assembly integrated into the barrel , allowing field swaps without tools in under two minutes to adapt to different lengths or calibers while maintaining gas system alignment. This modularity contrasts with fixed- rifles by reducing the need for precise hand-fitting during barrel changes. A key feature is the adjustable gas regulator integrated into the gas block, typically offering two or three positions (e.g., normal fire, suppressed fire, and adverse conditions) accessible via a finger-actuated lever without disassembly. This allows operators to tune gas flow for suppressors—increasing backpressure without over-gassing—or to mitigate in dirty environments by restricting flow, thereby optimizing reliability across types and barrel configurations from 10.5 to 18 inches. The short-stroke inherently directs and carbon buildup to the gas block and assembly rather than the bolt carrier group, facilitating easier , though empirical tests have shown vulnerability to carbon locking under extreme neglect without adjustment. Overall cycle rate approximates 650-700 rounds per minute in full-automatic variants, balancing with rapid follow-up shots.

Modularity and Quick-Change Components

The Adaptive Combat Rifle incorporates extensive to enable rapid adaptation to diverse mission profiles, with key components designed for tool-less interchangeability. The core of this system is the quick-change barrel assembly, which allows field replacement of barrels in lengths including 10.5 inches, 14.5 inches, 16.5 inches, and 18 inches, each equipped with an integrated short-stroke gas piston for consistent operation across configurations. This design facilitates caliber conversions—such as from to —by swapping the barrel, bolt carrier group with compatible bolt head, and , minimizing downtime during reconfiguration. Supporting this adaptability, the rifle features a multi-caliber bolt carrier assembly and adjustable gas regulator, allowing fine-tuning of the short-stroke gas system without disassembly. Other quick-change elements include the upper and lower receivers, which support interchangeable handguards, stocks, and pistol grips, with the polymer upper providing mounting points for optics and accessories via integrated . The trigger group and fire control components are also modular, permitting swaps for different operational modes while maintaining compatibility with the non-reciprocating charging handle. In the Bushmaster civilian production models, these features preserved the original Magpul prototype's emphasis on user-level modularity without specialized tools. However, the Remington military variant introduced modifications, replacing the quick-change barrel with a traditional Modular Sniper Rifle-style barrel nut system, which required more involved barrel retention while retaining overall configurability. This evolution balanced production scalability with the rifle's foundational modular principles, though it reduced the speed of certain field adjustments compared to the initial design.

Ergonomics and Controls

The Adaptive Combat Rifle incorporates ambidextrous controls designed to enhance usability for operators of varying handedness, including a selector switch, magazine release paddle, and bolt catch/release located on both sides of the lower receiver. The charging handle, while initially prototyped as fully ambidextrous in the Magpul Masada, was adapted in production models to primarily right-side operation with optional left-side compatibility via swapping, though some configurations retained bilateral access. Ergonomic features emphasize operator comfort and rapid manipulation, with a pistol grip contoured for secure hold and reduced fatigue during extended use, directly influenced by Magpul's design principles prioritizing natural hand positioning. The safety selector provides 90-degree travel with positive engagement in safe and fire positions, minimizing accidental activation while allowing quick transitions. The adjustable stock offers six positions for and multiple cheek riser settings, enabling customization for diverse user anthropometrics and firing stances, including prone positions. Integrated into the lower receiver, these elements contribute to the rifle's lightweight profile—approximately 7.2 pounds unloaded in standard configuration—facilitating easier handling compared to heavier modular rifles. The modular handguard ensures unobstructed access to controls without interference from attachments, supporting ergonomic consistency across configurations.

Variants and Configurations

Bushmaster ACR Models

The Bushmaster ACR was produced as a for civilian and law enforcement markets, primarily chambered in with a standard 16.5-inch cold hammer-forged barrel to comply with U.S. federal regulations for non-NFA firearms. Two main civilian models were offered: the Basic and the Enhanced, differing primarily in stock design, fore-end configuration, and accessory mounting options. The Basic model featured a fixed fore-end compatible with Magpul handguards and a non-folding stock, weighing approximately 8 pounds unloaded with an overall length of 36.75 inches extended. In contrast, the Enhanced model included a folding, adjustable stock with cheek riser for improved , an aluminum quad-rail fore-end for Picatinny accessories, and a threaded muzzle device such as an AAC flash hider, at a suggested retail of around $3,031 compared to $2,685 for the Basic in 2010. A (DMR) variant was also available, featuring an 18.5-inch barrel optimized for longer-range precision shooting, a specialized buttstock, and retained for quick barrel changes, though production volumes were limited. All models utilized a short-stroke gas piston operating system, ambidextrous controls, and compatibility with STANAG magazines, with optional caliber conversions to via barrel, bolt, and magazine kits, though 5.56mm remained the dominant civilian configuration. Barrel twist rates varied, with 1:9 inches standard for 5.56mm, and quick-change barrels allowed field swaps without tools in under two minutes. Production of these models began shipping to civilians in April 2010, emphasizing and reliability for tactical applications.

Remington ACR Military Variant

The Remington ACR military variant, produced by under Freedom Group, was a select-fire iteration of the Adaptive Combat Rifle designed specifically for and applications. It featured a three-position fire selector switch enabling safe, semi-automatic, and fully automatic modes, with a cyclic between 650 and 700 rounds per minute. Primarily chambered in , it also supported 6.8 Remington SPC for enhanced ballistic performance in configurations. Barrel options included 10.5-inch lengths for roles, 14.5-inch setups, and 16.5-inch designations for use, all compatible with quick-change mechanisms requiring no tools for swaps in under 60 seconds. This variant retained the core principles of the ACR platform, including a short-stroke gas operating system for reduced compared to direct impingement rifles like the M4, ambidextrous controls, and a folding adjustable . It utilized 30-round STANAG-compatible magazines and weighed approximately 3.175 kg unloaded, emphasizing construction for lighter weight without sacrificing durability. Remington positioned the ACR as a versatile replacement for legacy service rifles, capable of caliber conversions to via barrel and bolt exchanges, though full conversion kits saw limited realization in practice. In 2010, Remington submitted the select-fire ACR to the U.S. Army's competition, aimed at evaluating replacements for the through extensive reliability, accuracy, and endurance testing. The rifle underwent trials assessing over 20,000 mean rounds between stoppages and ergonomic improvements, but empirical data indicated no statistically significant advantages over the existing M4A1 in key metrics such as reliability under adverse conditions or overall system performance. The program was canceled in 2013 after determining that none of the entrants, including the ACR, warranted the high procurement costs for marginal gains. No U.S. military contracts were awarded, and the variant saw negligible adoption by other forces, overshadowed by established alternatives like the . Production challenges further hampered the military ACR's viability, including quality control issues at Remington's facilities that led to broader ACR recalls in 2011–2012 for civilian models, indirectly affecting select-fire variants through shared components. High unit costs, estimated at $2,600–$3,000, combined with insufficient aftermarket support and unfulfilled modularity promises, contributed to its commercial and contractual failure despite initial marketing as a "next-generation" weapon system. By Remington's 2020 bankruptcy, the military variant had effectively ceased production without achieving operational deployment.

Caliber and Barrel Options

The Adaptive Combat Rifle (ACR) is chambered primarily in for both military and civilian variants. Its modular design enables quick caliber conversion to or through user-level replacement of the bolt head, barrel, and magazine, requiring no specialized tools and completable in minutes. These conversions maintain the rifle's short-stroke gas piston operating system while adapting to intermediate cartridges intended for enhanced over standard 5.56mm. Barrel options span 10.5-inch lengths for close-quarters configurations, 14.5-inch for roles, 16.5-inch for general-purpose use, and 18-inch for precision applications, available across all supported calibers. Barrels are cold hammer-forged, chrome-lined, and treated for durability, with the civilian Bushmaster ACR standardizing on the 16.5-inch variant to comply with U.S. sporting regulations. Remington ACR configurations prioritize 14.5-inch barrels in 5.56mm for compatibility with existing , though longer options support roles. Additional aftermarket conversions to calibers such as .300 Blackout or have been documented, though these fall outside the original design intent focused on military-standard intermediates. Empirical testing of caliber swaps demonstrates reliable function without permanent modifications, underscoring the ACR's emphasis on field adaptability over fixed specifications.

Performance Evaluations

Reliability Testing and Empirical Data

The Remington ACR variant participated in the U.S. Army's competition from 2010 to , which evaluated potential replacements for the across metrics including reliability under extreme conditions such as dust, mud, and temperature variations. The program's reliability threshold required an average of 3,592 mean rounds between failures (MRBF), a standard no entrant—including the ACR, HK416, , and others—met during phase II testing. For context, prior evaluations of the M4A1 yielded 1,691 MRBF, surpassing the existing M16 family minimum of 600 but falling short of the elevated goal. In October 2010, Bushmaster issued a voluntary recall for all ACR semi-automatic rifles manufactured prior to that date, citing a firing pin design flaw that could lead to unintended multiple discharges or full-auto fire when using ammunition with sensitive primers. The issue stemmed from the firing pin's mass causing inertial slam-fires, affecting a subset of units but prompting a full recall to modify the component for safer operation. Civilian and independent evaluations have documented additional mechanical vulnerabilities, such as gas tube fractures after approximately 2,000 rounds of use, potentially disrupting the short-stroke piston system's function without prior stoppages. Early production models also exhibited inconsistencies like short-stroking and failure to feed, often linked to gas regulation sensitivity to variations, though post-recall refinements improved consistency in controlled environments. These findings align with the ACR's exclusion from major military adoptions, where empirical thresholds prioritized sustained performance over modularity.

Accuracy and Ballistic Performance

The Bushmaster ACR in configuration achieves accuracy comparable to AR-15 platforms, with benchrest tests yielding average 1.5-inch ten-shot groups at 100 yards using 69-grain Federal Gold Medal Match ammunition. Sub-MOA performance is attainable under optimal conditions, as evidenced by 0.68-inch five-shot groups at 100 yards with 69-grain match hollow point loads. Group sizes typically range from 1 to 1.5 inches for five-shot strings at 100 yards across various commercial ammunition types, including Federal, , and , even in windy conditions; tighter clusters under 0.5 inches have been observed within larger groups using match-grade projectiles. Initial accuracy can vary due to the quick-change barrel system's tolerances, with one evaluation reporting 4-inch spreads at 100 yards using 75-grain OTM ammunition that improved to under 2 inches after barrel nut adjustment. The (DMR) variant, featuring a heavier contour barrel, enhances precision potential, though empirical data remains consistent with standard models at 1-1.5 for combat-effective ranges up to 500 yards. Ballistic performance aligns with expectations for 5.56×45mm from 16-inch barrels, recording muzzle velocities of 2,639 to 3,067 feet per second depending on load: 3,067 fps with 62-grain Lake City SS109, 2,800 fps with 69-grain match, and 2,745 fps with 77-grain Buffalo Bore sniper . Shorter 14.5-inch barrels reduce velocities proportionally, while 18-inch options extend through retained energy, though specific mirror standard 5.56 trajectories with point targets viable to 500 meters. Modular caliber conversions, such as to 6.8 SPC, alter toward higher energy retention but introduce compatibility variables untested in standard evaluations.

Comparative Analysis with Established Rifles

The Adaptive Combat Rifle (ACR) has been evaluated against established rifles such as the M4A1 carbine, FN SCAR-L, and HK416 primarily through civilian reviews, informal competitions, and limited military submissions, as comprehensive U.S. military comparative trials data remains scarce. These comparisons often emphasize the ACR's short-stroke gas piston system, which reduces carbon fouling compared to the M4A1's operation, aligning it more closely with the piston-driven SCAR-L and HK416 in suppressed or adverse environments. However, the ACR's civilian variant demonstrates weights of approximately 6.5-8.3 pounds unloaded (depending on barrel length and accessories), comparable to the SCAR-L's 6.25-7.3 pounds but heavier than the baseline M4A1's 6.4 pounds, potentially impacting maneuverability in extended carry scenarios. In , the ACR excels with its tool-free quick-change barrel system, allowing swaps in seconds for or length adjustments, a feature absent in the M4A1 and more cumbersome in the SCAR-L or HK416, which require specialized tools or disassembly. Reliability assessments from user reports and endurance tests indicate the ACR sustains function after 15,000 rounds without accuracy degradation and performs in extreme conditions like submersion or burial, on par with the SCAR-L's piston reliability but without the latter's broader combat-proven record in U.S. . Some independent evaluations, such as those by firearms instructor Travis Haley, favor the SCAR-L for superior accuracy and overall dependability in high-round-count scenarios, attributing this to refined and barrel harmonics. Accuracy metrics across platforms show minimal differentiation, with the ACR's 1:9-inch twist supporting standard loads effectively, though the SCAR-L's 1:7 twist accommodates heavier bullets for extended range better. The HK416 edges in precision due to its cold-hammer-forged barrel, but the ACR's adjustable gas block aids consistency with suppressors, mirroring capabilities. Economic factors reveal the ACR's higher production costs— models retailing above $1,500 versus the M4A1's procurement at around $600—contributing to its limited adoption despite conceptual parity.
AspectACRM4A1SCAR-LHK416
Gas SystemShort-stroke pistonDirect impingementShort-stroke pistonShort-stroke piston
Unloaded Weight (approx., 14.5" barrel)6.5-7.3 lbs6.4 lbs6.25-7.3 lbs~7.5 lbs
Barrel ChangeTool-free, secondsTools required, minutesTools requiredTools required
Reliability Notes15k rounds sustained; good in dirt/snowProne to foulingCombat-proven; high enduranceProven in military use

Adoption and Operational Use

Military Trials and Contracts

The Remington ACR, the military variant of the Adaptive Combat Rifle, was submitted by Remington Defense to the U.S. Army's Individual Carbine competition, initiated in 2010 to evaluate potential successors to the M4 carbine. The program required entrants to demonstrate improvements in areas such as weight, reliability under adverse conditions, and ergonomics, with the ACR undergoing modifications including a weight reduction challenge that trimmed approximately 0.75 pounds through redesigned components like the handguard and bolt carrier group. Evaluations included extensive testing for accuracy, lethality, and durability, but in June 2013, the Army terminated the program, concluding that none of the competing rifles, including the ACR, offered sufficient operational advantages over the existing M4 to justify adoption. Despite lacking major U.S. contracts, the ACR saw limited by foreign militaries. In 2010-2011, purchased an undisclosed number of ACR rifles in two barrel configurations for deployment in , where they were observed in use by units conducting operations. This represented one of the few documented military acquisitions of the platform, though no large-scale contracts or widespread adoption followed. No other significant military trials or contracts have been reported for the ACR, contributing to its limited operational footprint.

Law Enforcement Deployment

The Remington ACR variant, produced under contract by , was specifically configured for U.S. law enforcement agencies with select-fire capabilities to meet operational requirements for tactical teams and patrol units. Bushmaster Firearms offered dedicated law enforcement models, including the Patrol configuration for general duty and the Special Purpose variant optimized for specialized operations, emphasizing for quick and barrel swaps. Configurations featured compact barrel lengths of 10.5 inches and 14.5 inches to suit close-quarters engagements common in urban policing scenarios. Marketing efforts targeted at industry events, such as the 2010 , where the rifle's adaptive features drew interest from officers for potential replacement of legacy AR-15 platforms in and entry teams. However, no large-scale contracts or documented field deployments by major police departments have been publicly reported, with available data indicating limited procurement confined to testing or small-scale evaluations rather than routine issuance. Factors such as high production costs exceeding $2,000 per unit and reported early reliability challenges in adverse conditions likely constrained broader uptake compared to established alternatives like the Colt .

Civilian Availability and Market Penetration

The Bushmaster ACR, the semi-automatic variant of the Adaptive Combat Rifle, became available to civilian purchasers in 2010 through Bushmaster Firearms, which handled sales for non-military markets. Marketed as a modular rifle with interchangeable barrels and calibers including 5.56×45mm NATO, it was positioned as an advanced alternative to traditional AR-15 platforms, with initial retail prices ranging from $2,600 to $3,000 depending on configuration. However, availability was disrupted shortly after launch by a voluntary recall on October 15, 2010, due to a design flaw causing unintended full-auto fire in some units, requiring owners to return rifles for inspection and modification. Despite resuming sales post-recall, the ACR achieved limited , hampered by its —often double that of comparable AR-15 rifles—and from more established, lower-cost options in a market favoring reliability and affordability. Sales figures remained low, contributing to the rifle's shift toward niche appeal among enthusiasts rather than broad adoption, with production effectively ceasing around 2013 following the U.S. military's cancellation of the . By the time Bushmaster's parent company, , faced financial pressures leading to the brand's operational shutdown in 2020, the ACR had transitioned into a collector's item, with no new units entering the civilian market. In the as of 2025, used Bushmaster ACR rifles typically command prices between $1,750 and $2,250, reflecting and sustained interest among modular rifle aficionados, though overall ownership remains a fraction of that for dominant platforms like the AR-15. Recent teases of a "perfected" ACR revival by a revitalized Bushmaster in 2021 have not materialized into widespread civilian availability, underscoring the rifle's marginal commercial footprint.

Reception and Criticisms

Innovations and Conceptual Strengths

The Adaptive Combat Rifle (ACR) introduced a high degree of through its quick-change barrel and system, enabling field reconfiguration for different barrel lengths, calibers such as 5.56mm , 6.8mm SPC, and , and operational roles without specialized tools. This design feature stemmed from Magpul's prototype, emphasizing rapid adaptation to mission-specific requirements like close-quarters battle or extended-range engagements. Conceptually, this reduces logistical burdens by allowing a single platform to fulfill multiple functions, potentially streamlining supply chains in diverse combat environments. Ambidextrous controls, including the magazine release, bolt catch/release, fire selector, and charging handle, enhanced operator for left- and right-handed users, drawing from influences like the while integrating AR-15 compatibility for parts commonality. The short-stroke gas piston operating system, paired with an adjustable gas regulator, aimed to improve reliability by minimizing fouling in the action compared to systems, supporting sustained fire in adverse conditions. A folding, adjustable stock further contributed to compactness and user fit, facilitating transport and deployment in varied tactical scenarios. These elements collectively positioned the ACR as a versatile "adaptive" platform, conceptually superior for forces requiring flexibility without platform proliferation, as it permitted and configuration swaps in minutes to match evolving threats or environmental factors. The integration of components and advanced coatings also targeted enhanced and , reducing weight while preserving structural integrity under operational stresses. This first-principles approach to prioritized user-centric adaptability over rigid specialization, fostering potential for broader combat utility.

Practical Shortcomings and Reliability Issues

The Bushmaster ACR exhibited several reliability concerns during early production, particularly under Freedom Group ownership, including susceptibility to on internal components and loosening of the quick-detach barrel during sustained fire, which compromised accuracy. These manufacturing defects prompted a 2010 recall by Bushmaster to address potential safety issues in select rifles, though post-recall testing by users reported consistent function with various ammunition types absent the specific fault. In adverse environmental conditions, the ACR's folding stock mechanism became difficult to operate when contaminated with , hindering rapid adjustments in combat scenarios and highlighting vulnerabilities in its polymer-heavy compared to more robust metallic alternatives. Independent torture tests, including submersion in and , demonstrated functionality after cleaning but required more intervention than AR-15 platforms, with the short-stroke gas piston system occasionally prone to carbon buildup necessitating frequent disassembly. User reports from high-round-count sessions noted intermittent failures to eject or feed after 400-500 rounds without lubrication, attributable to the rifle's proprietary parts rather than inherent flaws. Proprietary components and limited aftermarket support exacerbated practical shortcomings, as the promised modular barrel and caliber swaps were never fully realized, leaving operators reliant on scarce factory parts for maintenance and repairs. This lack of interchangeability contrasted with the AR-15 , increasing logistical burdens in field use and contributing to the rifle's failure to secure military contracts, where empirical evaluations prioritized proven durability over conceptual adaptability. Despite these issues, later production models showed improved consistency in controlled environments, though the absence of widespread operational data limits claims of resolved long-term reliability.

Economic and Market Factors

The Adaptive Combat Rifle's and use of advanced composites and precision-machined components resulted in elevated production costs compared to traditional AR-15 variants, limiting without large-volume contracts. Initial manufacturer estimates pegged civilian pricing at approximately $1,500, but upon release, suggested retail prices ranged from $2,685 to $3,061 for base configurations, excluding additional barrels or calibers needed for full adaptability. This discrepancy stemmed from unforeseen complexities and material expenses, eroding early market enthusiasm and positioning the ACR as a premium product in a price-sensitive segment dominated by sub-$1,000 alternatives. Absence of significant military procurement—despite trials—prevented cost reductions through , as Bushmaster managed civilian and sales while Remington pursued federal opportunities that never materialized at volume. Civilian remained niche, with demand hampered by the rifle's high entry price relative to perceived value, especially amid reliability recalls in 2011 for unintended full-auto discharges and inconsistent . Resale values subsequently declined, with used ACRs averaging $1,500 to $2,500 by 2025, reflecting tepid interest and competition from more reliable, customizable AR platforms. Remington's repeated bankruptcies, culminating in 2020 asset sales, further undermined the platform's viability by disrupting parts supply and aftermarket support, though discontinuation predated the final halt in production. Aftermarket innovations, such as custom barrels costing $810 or handguards starting at $450, have sustained limited interest among enthusiasts but failed to revive broader commercial appeal due to ongoing availability constraints and the entrenched dominance of lower-cost incumbents.

Prospects for Revival

In May 2025, Bushmaster Firearms announced plans to reintroduce the Adaptive Combat Rifle (ACR) to its product catalog, citing sustained market demand among civilian shooters for the platform's . This follows the company's acquisition of the Bushmaster brand post-Remington's 2020 , which had previously halted ACR production amid low sales and parts shortages. The revival targets semi-automatic variants for the U.S. civilian market, potentially addressing past criticisms of high cost—originally priced at around $2,000–$3,000 per unit—through updated manufacturing under new ownership by the successor entities. However, prospects remain constrained by historical reliability issues, such as gas system vulnerabilities in adverse conditions reported during early trials, which deterred broader adoption. Civilian enthusiasm persists in niche communities valuing quick-caliber swaps (e.g., from 5.56mm to 6.8mm SPC), but competition from established AR-15 platforms offering similar modularity at lower prices (often under $1,000) limits mass appeal. Regulatory hurdles, including 2024 handgun bans in markets like that retroactively affected remaining ACR stockpiles, further complicate international sales. Military revival appears improbable, as the U.S. Army has fielded the (NGSW) XM7 rifle to units like the starting in 2024, prioritizing 6.8mm lethality over the ACR's multi-caliber adaptability. No recent contracts specify the ACR, with prior U.S. Army procurements focusing on commercial-off-the-shelf M4 variants for allies rather than the ACR platform. Foreign militaries, such as those in or , have shown no interest in trials, favoring cost-effective alternatives amid ongoing conflicts. Overall, while civilian reintroduction may sustain limited production, systemic economic factors—high development costs exceeding $100 million initially—and entrenched incumbents suggest modest prospects without major innovations in affordability or proven field performance.

References

  1. https://www.nrablog.com/articles/2017/2/a-brief-history-of-the-adaptive-combat-rifle
  2. https://www.thefirearmblog.com/blog/2008/02/02/magpul-masada-is-now-bushmaster-acr/
  3. https://www.americanrifleman.org/content/the-bushmaster-acr/
  4. https://sadefensejournal.com/the-masada-adaptive-combat-weapons-system/
  5. https://www.thefirearmblog.com/blog/2007/12/22/magpul-interview-the-masada-firearms-industry-and-internet-marketing/
  6. https://www.rifleshootermag.com/editorial/featured_rifles_magpul_091907/83446
  7. https://defensereview.com/magpul-masada-adaptive-combat-weapon-system-acws-makes-its-debut/
  8. https://www.wearethemighty.com/tactical/adaptive-combat-rifle-history/
  9. https://www.acrforum.com/threads/acr-rights-going-back-to-magpul.1569/
  10. https://www.all4shooters.com/en/shooting/pro-zone/remington-acr-assault-rifle/
  11. https://sadefensejournal.com/bushmaster-acr-adaptive-combat-weapon-system/
  12. https://www.armoryblog.com/firearms/rifles/bushmaster-launches-acr/
  13. https://www.thefirearmblog.com/blog/2009/06/30/bushmaster-acr-coming-late-this-year-maybe/
  14. https://www.militarytimes.com/off-duty/gearscout/2010/10/16/bushmaster-issues-acr-recall/
  15. https://www.thetruthaboutguns.com/bushmaster-acr-recall-explained/
  16. https://www.thefirearmblog.com/blog/2010/10/16/bushmaster-acr-recall/
  17. https://freerangeamerican.us/acr-rifle/
  18. https://www.ar15.com/forums/Armory/ACR-lemons-Freedom-GRoup-problems-/56-509860/
  19. https://gatdaily.com/articles/the-remington-bushmaster-acr-how-well-has-it-aged/
  20. https://www.acrforum.com/threads/addressing-some-gripes-about-the-bushmaster-acr-for-potential-buyers.5687/
  21. https://defensereview.com/bushmaster-acr-adaptive-combat-rifle-recalled-gun-going-full-auto/
  22. https://www.pewpewtactical.com/what-happened-bushmaster-acr/
  23. https://www.thefirearmblog.com/blog/2009/07/22/remington-acr/
  24. https://rifleshooter.com/2011/06/bushmaster-acr-review/
  25. https://smallarmsreview.com/magpul-military-industries-masada-adaptive-combat-weapon-system/
  26. https://modernfirearms.net/en/civilian-rifles/u-s-a-civilian-rifles/magpul-masada-acr-eng/
  27. https://sadefensejournal.com/bushmaster-acr-adaptive-combat-weapon-system/2/
  28. https://bulgarianmilitary.com/2020/06/30/forget-about-ak-bushmaster-acr-is-the-assault-rifle-of-the-future-soldier/
  29. https://www.police1.com/police-products/firearms/precision-rifles/articles/shot-show-2010-the-buzz-about-the-new-adaptive-combat-rifle-7GXmKe4CE5T0BAYS/
  30. https://www.acrforum.com/threads/gas-piston-operation.1029/
  31. https://xtremegunsandammo.com/shop/rifles-for-sale/bushmaster/bushmaster-acr/bushmaster-acr-enhanced-black/
  32. https://combatrifle.net/acr.htm
  33. https://defensereview.com/remington-acr-pdw-sbr-adaptive-carbine-personal-defense-weapon-short-barreled-rifle-and-remington-individual-carbine-ic-candidate-remington-defense-assault-riflescarbinespdws-at-ndia-joint-arma/
  34. https://www.guns.com/news/2011/10/17/its-back-the-remington-acr-the-magpul-masada-reborn
  35. https://www.swatmag.com/article/bushmaster-acr-vs-ar/
  36. https://www.thetruthaboutguns.com/gun-review-lemil-remington-acr/
  37. https://rangeusa.com/product/bushmaster-acr-5.56-16.5-blk-30-mlk
  38. https://www.tourspecgolf.com/blog/bushmaster-acr-review-out-of-bounds/
  39. https://gearsofguns.com/bushmaster-acr-enhanced-review/
  40. https://www.policemag.com/news/bushmaster-acr-arrives-for-civilians-then-le
  41. https://guns.fandom.com/wiki/Adaptive_Combat_Rifle
  42. https://www.quora.com/Does-the-US-military-use-Remington-ACR
  43. https://www.nationaldefensemagazine.org/articles/2013/8/1/2013august-carbine-competition-fails-to-find-improvement-over-current-weapon
  44. https://www.snipershide.com/shooting/threads/acr-2k-rds-broken-gas-tube.49138/
  45. https://www.acrforum.com/threads/acrs-never-ending-problems-please-help.4658/
  46. https://www.gunblast.com/Bushmaster-ACR.htm
  47. https://calibremag.ca/bushmaster-acr-non-restricted-review/
  48. https://www.mdshooters.com/threads/bushmaster-acr-vs-fn-scar.52287/
  49. https://www.quora.com/How-good-is-the-ACR-rifle-How-does-it-compare-to-the-M4-HK416-and-SCAR-series
  50. https://bulgarianmilitary.com/2020/07/10/comparison-of-bushmaster-acr-assault-rifle-with-fn-scar-assault-rifle/
  51. https://www.fnforum.net/threads/military-arms-channel-scar-vs-acr.57702/
  52. https://www.fnforum.net/threads/scar-vs-acr-guess-what-didnt-win.17100/
  53. https://precisecast.com/remington-defense-acr-weight-reduction-challenge/
  54. https://firearmcentral.fandom.com/wiki/Individual_Carbine
  55. https://soldiersystems.net/2012/04/18/polish-use-of-acr-in-afghanistan/
  56. https://www.thefirearmblog.com/blog/2012/05/30/remington-acr-deployed-in-afganistan-with-polish-sf/
  57. https://www.policemag.com/photo-galleries/bushmaster-adaptive-combat-rifle-acr
  58. https://military-history.fandom.com/wiki/Adaptive_Combat_Rifle
  59. https://www.reddit.com/r/battlefield_4/comments/fawlrf/the_acr_acwr_is_officially_gone_irl_no_more_acr/
  60. https://www.cashforarms.com/blogs/how-much-is-a-bushmaster-acr-currently-worth
  61. https://gunsweek.com/en/gun-industry/news/bushmaster-firearms-back
  62. https://soldiersystems.net/2009/06/02/remington-acr/
  63. https://loadoutroom.com/the-acr-adaptive-combat-rifle/
  64. https://www.youtube.com/watch?v=IRBEAi6Rmgo
  65. https://www.svtperformance.com/threads/bushmaster-acr-problems.706097/
  66. https://truegunvalue.com/rifle/bushmaster/acr/price-historical-value-625
  67. https://internationalsportsman.com/could-the-aftermarket-save-bushmasters-acr/
  68. https://www.youtube.com/watch?v=xOpFvkMvSLE
  69. https://www.toolify.ai/gpts/the-future-of-the-bushmaster-acr-still-cool-in-2023-321395
  70. https://www.reddit.com/r/canadaguns/comments/1kqyupl/only_6_months_too_late_bushmaster_is_rereleasing/
  71. https://www.armytimes.com/news/your-army/2023/12/20/army-to-field-new-rifle-machine-gun-and-optic-in-2024/
  72. https://athlonoutdoors.com/article/remington-defense-army-carbines/
  73. https://spartanat.com/en/us-army-gewehre-fuer-freunde-von-remington
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