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The Z-M LR-300 is an American select-fire assault rifle designed by gunsmith Allan Zitta and manufactured by Z-M Weapons. The model name LR-300 stands for Light Rifle and 300 is for 300 meters, which is regarded by the manufacturer as the effective range of the rifle with a standard 55 gr (3.6 g) FMJ bullet. The design is based on the AR-15, M16 and C7 rifles, but has a unique semi-direct gas impingement system and a folding stock option.[1]

Key Information

History

[edit]

The design was originally a stockless short-barreled pistol version of an AR-15 receiver that Allan Zitta used in target shooting competitions. It later went into commercial production as the Master Blaster in 1996.[2] Zitta later developed it into a full rifle with a folding stock, and conversion kits have also been offered for AR-15 rifles.

In 2008, the LR-300 was offered under the name Para Tactical Target Rifle (TTR) as a result of a joint collaboration between Para USA and ZM Weapons.[3][4]

Description

[edit]

The direct gas impingement system used in the LR-300 is intended to solve the fouling problems of the traditional AR-15 direct gas impingement gas system. The forward-mounted return spring also allows for fitting a folding stock, and the factory stock option folds to the left side. The rifle is also available with a fixed stock. Since its introduction, the exterior design has evolved and changed a couple of times.[citation needed]

LR-300MLs have flat-top receivers with Picatinny rails, allowing them to be used with multiple types of sighting systems. The trigger, forward assist, magazine release and bolt hold release are identical to those of the AR-15. The barrel has a 1:9 inch (230 mm) twist ratio, is chrome lined, and the muzzle is fitted with a Phantom flash suppressor.

Firing mode

[edit]

The weapon was originally designed with select-fire, offering the option for semi-auto, full auto, and burst fire options. When fired, the LR-300 has a built-in counter-recoil mechanism which helps to off-set muzzle rise, decreasing the recoil in comparison to the inspiration for the rifle, the M16.[5]

Stock

[edit]

Contrary to the original AR-15 rifle design, the LR-300 has the capability to use a fully folding and adjustable skeletal stock. Most AR-15 rifle variants have a thick, cylindrical recoil buffer tube, more properly called the receiver extension, that protrudes approximately 20 cm (7.9 in) straight back from the rear of the receiver, and the firearm cannot operate without it. This normally precludes the use of anything but fixed or telescoping stocks. The LR-300 however uses a forward-mounted return spring which removes the need for a receiver extension.

Gas system

[edit]

The LR-300 uses a modified version of the AR-15's standard direct impingement gas operating system dubbed delayed impingement gas system.[4] The gas key is extended beyond its normal length (manufacturer calls it an "operating rod"), extending into the handguard. The gas key contains the return spring which is fixed between the front of the receiver and the collar at the front of the gas key. The gas port is under the back side of the gas block, gasses go up then forward to the front side of the gas block then up and back to the gas tube. The gas tube is about half of the length of a standard AR-15 tube. The gas tube is always inside of the gas key (minimal overlap is about 1 inch). This leaves the area near the bolt much cleaner. Almost all gasses exit the gun through the holes on the right side of the bolt carrier, and minimal leaks from the gas key to the handguard area do not hinder the gun's function.

Upper

[edit]

To accommodate the unique forward buffer and gas impingement system, the proprietary upper is taller and thicker than a standard AR upper.[4] The handguard rail has a removable top cover to access the recoil spring system for disassembly. The charging handle is proprietary and has a beefier design to fit the op-rod.[6]

Models

[edit]
  • LR-300 ML-A: Military/law enforcement model (selective fire version). Has an 11.53 in (293 mm) barrel, aluminium forend, and fires single shots or bursts.
  • LR-300 ML-N: Military/law enforcement model (selective fire version). Has an 11.53 in (293 mm) barrel, Nylatron forend with attachable Picatinny rails, and fires single shots or bursts.
  • LR-300 SR-A: Sport rifle model (semi-auto fire version). Has a 16.49 in (419 mm) barrel, aluminum forend, and fires single shots.
  • LR-300 SR-N: Sport rifle model (semi-auto fire version). Has a 16.49 in (419 mm) barrel, Nylatron forend with attachable Picatinny rails, and fires single shots.
  • LR-300 AXL: Aluminium quad handguard.[7]
  • LR-300 AXLT: Aluminium partial handguard.[7]
  • LR-300 NXL: Nylatron handguard.[7]
  • TTR-XA:[8] Handguard with full length aluminium quad rail.
  • TTR-XAS:[8] Aluminium handguard partially fitted with picatinny rails on bottom and sides at 90 mm (3.5 inches) of its length.
  • TTR-XASF: Aluminium handguard partially fitted with picatinny rails on bottom and sides, fixed stock.[9]
  • TTR-XN: Nylatron handguard.[9]
[edit]
  • The rifle can be seen and used by the player in the video game Urban Terror.
  • The rifle is seen prominently and can be used by the player in the video game S.T.A.L.K.E.R.: Shadow of Chernobyl and its sequels.
  • The rifle can be seen and used by the player in the video game Rust.
  • In video game Payday 2, a rifle named CAR-4 can be equipped with attachments that make it heavily resemble the LR-300.

See also

[edit]
  • SIG MCX, another folding stock AR-15 style rifle

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

LR-300

View on Grokipedia
from Grokipedia
The LR-300 is an American assault rifle chambered in (or ), developed in the late by Z-M Weapons as a modular to the AR-15/M16 platform, notable for its innovative gas system that enables a side-folding stock without requiring a traditional buffer tube. Designed by Allan Zitta, the rifle utilizes a shortened bolt carrier group and an extended gas key tube to vent propellant gases directly into the handguard, reducing heat buildup in the receiver and enhancing compactness for , , and civilian applications. Production of the LR-300 began in 2000 under Z-M Weapons, a small U.S. manufacturer, and continued until 2007 when the design rights were acquired by Para-Ordnance, which reintroduced it through its U.S. subsidiary Para USA in 2009 as the Para Tactical Target Rifle (TTR) with minor modifications for semi-automatic civilian sales. The rifle's military and law enforcement variants, such as the select-fire LR-300-ML, feature full-automatic capability with a cyclic rate of approximately 950 rounds per minute, while civilian models like the LR-300-SR are limited to semi-automatic fire to comply with U.S. regulations. Weighing between 5.6 and 7.6 pounds (2.54–3.45 kg) depending on configuration, the LR-300 offers barrel lengths of 11.5 inches (293 mm), 14.5 inches (368 mm), or 16.5 inches (419 mm), with overall lengths ranging from 32.25 to 37.25 inches (820–946 mm) when extended, folding to as short as 26.25 inches (667 mm) for improved portability. Key features include compatibility with standard AR-15 lower receivers and magazines (typically 30-round capacity for military use or 10-round for civilians), options on aluminum or Nylatron forends for mounting and accessories, and adjustable side-folding such as the polymer Tele-Fold or metal two-strut variants with rubber buttpad. The design was marketed as a breakthrough for due to its versatility, lightweight construction, and reduced recoil compared to traditional AR-15s, though its higher production cost limited widespread adoption. Variants like the LR-300-14.5 and LR-300-SR incorporate compensators or flash hiders, such as the 5M1 or Phantom suppressor, to manage and signature. Production under ceased around 2011, making original Z-M examples rare and collectible today.

Development and Production

Origins and Design Intent

Z-M Weapons was established in 1988 by firearms designer and gunsmith Allan Zitta in , with the aim of innovating on existing platforms like the AR-15 to overcome inherent limitations in modularity and user . Zitta, a veteran competitive shooter and IPSC World Champion from 1996 to 2002, sought to create more adaptable firearms suitable for tactical and use. The LR-300 project originated in the mid-1990s as a modular enhancement to the AR-15, specifically targeting issues with the traditional system's buffer tube, which restricted stock options and overall flexibility. The design originated from a stockless, short-barreled version of an AR-15 receiver that Zitta used in target shooting competitions. Zitta's core objectives centered on developing a that maintained the AR-15's reliability while introducing greater field adaptability through features like a side-folding stock compatible with the platform's operating system. Initial prototypes, completed around , were tested for integration of principles with enhanced compactness. Key design intents included improved for both right- and left-handed users via a left-side non-reciprocating charging handle, which facilitated quicker manipulations without interference from or accessories. The emphasized and reduced weight for superior handling in dynamic environments, without compromising the proven of the AR-15 lineage; this was achieved through Zitta's patented Delayed Impingement Gas System (DIGS), which minimized and eliminated the buffer tube dependency. Prototypes from 1999 to 2000 further refined these elements, focusing on seamless barrel swaps for mission-specific configurations and overall system reliability under high-stress conditions.

Manufacturing History

The LR-300 entered production in 2000 under Z-M Weapons, a small firearms manufacturer based in Bernardston, , initially focusing on prototypes and conversion kits to adapt existing AR-15 platforms with the rifle's innovative side-folding stock and forward recoil spring system. Z-M Weapons produced the through 2007, offering both select-fire models for applications and semi-automatic variants for civilian markets, with output centered on custom orders that contributed to the design's reputation for precision engineering but limited overall availability. In 2007, Z-M Weapons sold all rights to the LR-300 design to , the U.S. subsidiary of the Canadian firm Para-Ordnance Ltd., allowing the smaller company to transition away from ongoing manufacturing. relaunched production in 2009, rebranding the rifle as the Para Tactical Target Rifle (TTR) and incorporating minor enhancements such as refined surface finishes to appeal to tactical shooters. The TTR remained in production until 2011, when Para USA discontinued rifle manufacturing entirely to refocus resources on its core handgun lineup.

Current Status

Production of the LR-300 ceased in 2011 when Para USA exited the rifle market, ending active manufacturing of the rifle under that brand. Surplus and used examples occasionally appear on secondary markets, though the rifle's rarity limits widespread availability. Aftermarket support for the LR-300 leverages its design as an AR-15 derivative, with standard AR-15 components compatible for lower receivers and many upper parts, facilitating maintenance and customization through existing AR-15 ecosystems. Specialized uppers remain unique, but third-party adapters and kits enable integration with broader AR-15 accessories. Under U.S. , the semi-automatic LR-300 is classified and treated as a standard rifle, permissible for civilian ownership without special registration. Short-barreled variants, however, fall under (NFA) oversight, requiring ATF registration, a $200 tax stamp, and compliance with transfer rules. No nationwide bans apply to the platform, but restrictions exist in states like , where features such as the folding stock and classify it as an weapon under state prohibitions. Interest in the LR-300 persists through 3D-printed replicas designed for simulations and training applications, with detailed 1:1 scale models available for hobbyists to fabricate non-functional props. No successful revival efforts have materialized since Para USA's closure, though the design's innovative quick-change barrel system continues to inspire niche discussions among firearms enthusiasts.

Technical Design

Overall Specifications

The LR-300 is chambered in 5.56×45mm NATO, a standard intermediate cartridge for modern assault rifles, providing a balance of lethality and controllability at typical engagement distances. Its effective range is 300 meters. Overall lengths range from 667–820 mm (26.25–32.25 inches) folded to 820–946 mm (32.25–37.25 inches) extended, depending on barrel length and stock configuration, facilitating compact storage and maneuverability while supporting stable firing positions. Barrel length options are 11.5 inches (293 mm), 14.5 inches (368 mm), or 16.5 inches (419 mm), enabling customization for mission-specific needs such as short-barreled carbine variants for urban operations or longer barrels for extended accuracy. The unloaded weight ranges from 2.54 to 3.45 kg (5.6–7.6 lb) depending on configuration, contributing to its designation as a lightweight rifle suitable for extended patrols without excessive fatigue. The rifle accommodates STANAG-compatible magazines with capacities of 10, 20, or 30 rounds (10-round for civilian models), ensuring interoperability with NATO-standard equipment and reliable feeding during sustained fire. With M855 ball , it achieves a of approximately 900 m/s from a 14.5-inch barrel, delivering sufficient for point-target engagements out to 300 meters. Select-fire models maintain a cyclic of 950 rounds per minute, balancing suppressive capability with ammunition conservation.
SpecificationValue (Depending on Configuration)
Caliber
Effective Range
Overall Length667–820 mm (26.25–32.25 in) folded to 820–946 mm (32.25–37.25 in) extended
Barrel Length Options11.5–16.5 inches
Weight (Unloaded)2.54–3.45 kg (5.6–7.6 lb)
Magazine Capacity10, 20, or 30 rounds (STANAG-compatible)
Muzzle Velocity (M855)~900 m/s (14.5-inch barrel)
Rate of Fire (Select-Fire)
Barrel Twist1:9 inches

Upper Receiver and Barrel System

The upper receiver of the LR-300 is a forged aluminum construction incorporating a system for mounting optics and accessories. This design is compatible with standard AR-15 procedures for barrel changes. The barrel attaches via the standard AR-15 system using locking lugs on the barrel extension and a threaded barrel nut, supporting compatibility with chrome-lined chrome-moly steel barrels to maintain accuracy and durability. The overall assembly is compatible with standard AR-15 lower receivers, allowing seamless integration into existing platforms. This modularity permits switching between barrel lengths, such as 14.5-inch configurations for close-quarters operations and 16.5-inch variants for extended-range engagements, without the need for specialized tools beyond standard AR-15 maintenance, thereby improving adaptability across diverse mission profiles.

Gas Operating System

The LR-300 utilizes a modified gas operating system, which diverges from the standard AR-15 mechanism by incorporating an extended gas key on the bolt carrier. Gas is tapped from a port located approximately 7 inches from the chamber in carbine-length configurations, traveling through a strengthened gas tube to interact with the extended gas key tube within the handguard. This setup drives the shortened bolt carrier rearward via a piston-like action in the gas key, expelling excess hot gases outward through vents in the handguard rather than fully into the receiver. Key components of the system include the integrated gas block and front sight base, the floating rear gas tube that aligns with the extended gas key, and the bolt return spring housed inside the gas key tube collar. This configuration eliminates the need for a traditional rear buffer tube and recoil spring assembly, relocating them forward to accommodate side-folding stocks while preserving operational reliability. The design enhances efficiency by reducing internal fouling, as the majority of propellant gases are directed externally, resulting in cleaner operation compared to conventional systems. The system's advantages lie in its compatibility with compact configurations, such as folding stocks, without sacrificing cycle reliability or increasing impulse. In select-fire variants, it achieves a cyclic rate of 950 rounds per minute, contributing to controllable full-automatic fire with minimal due to the forward spring placement and . Maintenance involves periodic of the bolt carrier and gas key to ensure smooth reciprocation, leveraging the self-cleaning properties from reduced gas exposure in ; however, the gas block and tube should be inspected after extended use in dirty environments.

Stock and Controls

The LR-300 incorporates a side-folding or skeletonized metal stock that adjusts for , promoting ergonomic fit for diverse users and enhancing stability during aiming with . This design allows the stock to collapse sideways, shortening the overall length to as little as 667 mm (26.25 inches) in configurations with a 16.5-inch barrel, which supports compact carry in confined spaces or vehicles without sacrificing functionality. Controls on the LR-300 utilize a familiar AR-15-style lower receiver, featuring a fire selector, magazine release, and bolt catch arranged for efficient manipulation. The non-reciprocating charging handle integrates with the rifle's unique gas system, enabling reliable cycling even when the stock is folded. The provides a comfortable angle for natural hand placement, while the handguard accommodates vertical foregrips to improve forward control and reduce fatigue in extended use. Ergonomic considerations extend to the trigger mechanism, which delivers a consistent pull for precise shot placement, complemented by compatibility with adjustable cheek risers on select stocks for optimal eye alignment with sighting systems. Safety elements include a positive-locking selector with clear detents to prevent inadvertent firing, and a dust cover engineered to remain open during sustained operation, minimizing debris ingress and facilitating rapid reloads. The overall user-centered layout, enabled by the forward-placed recoil spring, prioritizes ambidextrous accessibility where applicable, such as dual-side charging handle options in certain models.

Variants

Military and Select-Fire Models

The LR-300 and select-fire models are designed for professional and applications, incorporating full-automatic fire capability to provide versatile engagement options in scenarios. These variants differ from semi-automatic versions primarily through their lower receivers equipped with select-fire mechanisms, while sharing the same modular upper receiver system for compatibility with standard AR-15 components. The base military model, designated LR-300ML, features select-fire operation including safe, semi-automatic, and full-automatic modes, paired with an 11.5-inch (293 mm) barrel and an A2-style flash hider for muzzle control and reduced signature. This configuration balances maneuverability and , making it suitable for general use. The full-automatic is approximately 950 rounds per minute, with an enhanced bolt carrier group engineered for improved durability during sustained fire sequences. These military models are outfitted with standard MIL-STD-1913 Picatinny rails along the upper receiver and forend, enabling the attachment of devices, lasers, and for targeting in low-light or dynamic conditions. The rifles are tested and compatible with 5.56x45mm ammunition, including the M855A1 performance round, ensuring reliable feeding and extraction under various operational stresses.

Civilian Semi-Automatic Models

The semi-automatic of the LR-300 were engineered specifically for the sporting and markets, ensuring compliance with U.S. federal regulations by limiting operation to semi-automatic only, without any select- capability. These models retain the core AR-15-inspired architecture of the LR-300 platform, including its lightweight construction and gas-operated mechanism, but incorporate adaptations for non-military use such as extended barrel lengths to meet minimum legal requirements for rifles. Chambered in (compatible with ), they emphasize reliability and modularity for target shooting and recreational applications. The LR-300SR-A serves as the primary sport rifle configuration, featuring a 16.5-inch chrome-lined barrel with a 1:9 twist rate for stabilizing common .223 projectiles, paired with an aluminum handguard ("A" designation) for heat dissipation during extended firing sessions. Side-folding stocks are standard and legal under for these rifles, though fixed A2-style or skeletonized options are available for compliance with certain state assault weapon restrictions. The overall weight is approximately 6.5 pounds, contributing to its maneuverability for civilian users. A Phantom flash suppressor is fitted to the muzzle, reducing visible signature without threading for suppressors in standard configurations. The LR-300SR-N builds on the SR-A design with enhancements for accessory integration, including a Nylatron forend ("N" designation) equipped with attachable Picatinny rails that extend along the top and sides, enabling mounting of , lights, or devices for low-light sporting activities. It maintains the same 16.5-inch barrel length and stock options as the SR-A, ensuring broad compliance across states. This variant's rail system supports tactical accessories while preserving the rifle's semi-automatic nature and 30-round magazine compatibility in unrestricted areas. Additional compliance modifications for restricted states include configurations with pinned to limit adjustability and reduced capacities of 10 rounds to align with and local laws. Production of these semi-automatic models ran from 2000 to 2007 under Z-M Weapons, after which rights transferred to for rebranding as the Tactical Target Rifle line starting in 2009. The LR-300SR series gained traction among competitive shooters due to its origins in the designer's 3-gun experience, offering a balance of speed and accuracy suited to dynamic events.

Usage and Legacy

Adoption by Military and Law Enforcement

The LR-300 was developed primarily for military and use, with its select-fire LR-300-ML variant featuring a compact , quick-change barrel system, and folding stock to enhance modularity in tactical environments. Within U.S. , the rifle was marketed to teams during the , valued for its rapid barrel swap capability that facilitated transitions during dynamic entries and close-quarters engagements. Performance assessments highlighted the LR-300's high reliability in adverse conditions, including and environments, though its elevated production costs relative to standard AR-15 platforms restricted broader integration across military and agencies.

Civilian Applications

The semi-automatic variants of the LR-300, chambered in , have found niche applications among civilian users for recreational and defensive purposes. These models, such as the LR-300-SR with its 16.5-inch barrel, comply with federal regulations for sporting rifles and emphasize modularity similar to the AR-15 platform. In hunting scenarios, the LR-300's lightweight design (approximately 6.5 pounds) and caliber make it suitable for varmint control and medium game pursuits, such as coyotes and deer, particularly when paired with for engagements up to 300 meters. The cartridge's flat trajectory and manageable support ethical shots on smaller big game, with proper selection enhancing terminal performance without excessive damage. For competition shooting, the LR-300 appeals to participants in dynamic events like 3-gun and IPSC due to its quick-handling folding stock and compatibility with AR-15 uppers, allowing caliber changes from 5.56mm to .300 Blackout for varied stages. The Para USA Tactical Target Rifle variant, introduced in 2009, features a delayed impingement gas system that reduces recoil for faster follow-up shots, aiding precision in tactical target competitions. In home defense roles, compact configurations like the LR-300-14.5 with its 14.5-inch barrel and side-folding stock (reducing overall length to about 35 inches) offer maneuverability in confined urban spaces. The low recoil of the facilitates rapid, accurate follow-up shots, while the platform's reliability with standard 30-round magazines supports defensive needs. Civilian ownership of the LR-300 remains limited due to its small-scale production from 2000 to 2007 by Z-M Weapons and subsequent licensing to until 2011, fostering a dedicated enthusiast base focused on custom modifications. As of 2025, the LR-300 remains out of production, with original examples highly sought after by collectors.

Cultural Impact

The LR-300 has garnered a niche presence in video games, where its distinctive folding stock and compact design make it a favored for customizable rifles. It appears in the Rust (introduced in a 2016 update) as a high-damage, low-recoil military-grade obtainable from crashes, praised for its balance in close-to-medium range combat. The rifle is also featured prominently in the S.T.A.L.K.E.R. series, including Shadow of Chernobyl (2007), Clear Sky (2008), and Call of Pripyat (2009), where it is depicted as the "TRs 301" with modular attachments like suppressors and scopes, embodying a reliable stalker armament in the post-apocalyptic setting. Other titles include CrossFire (2007) as the LR300 ML carbine, known for its stability over the M4A1; Urban Terror (2000) as the "ZM LR300," optimized for high-rate close-quarters fire; and Brain/Out (2017), a 2D top-down shooter inspired by Counter-Strike, where it serves as a core option. These implementations highlight the LR-300's appeal in gaming for representing innovative AR-15 variants. In film and television, the LR-300 has made sporadic but memorable cameos as a futuristic or elite prop weapon, contributing to its aura of rarity. In the action thriller (2001), it is carried by Marco (played by ) as a subtle nod to advanced tactical gear, though never fired on screen. The rifle appears in (2006 film) wielded by a British bodyguard during high-stakes sequences, underscoring its sleek, international operative aesthetic. Similarly, in (2010), Tom Cruise's character Roy Miller uses it in espionage-driven action, emphasizing its compact modularity for covert operations. On television, it features in the sci-fi series Firefly (2003) episode "The Message," held by the smuggler Tracey (), blending into the show's rugged, frontier-like firearm palette. These roles, often as background or hero-side arms, have cemented the LR-300's status as a "cool factor" rifle in visual media despite limited exposure. Among firearms enthusiasts and AR-15 builders, the LR-300 enjoys a dedicated for pioneering a true side-folding on the AR platform while retaining reliability, fostering discussions on early modular evolutions. Online communities and builders prize its rarity—production ceased around 2011—leading to custom recreations and upgrades that highlight its innovative upper receiver as a benchmark for compact 5.56mm designs. YouTube channels have featured disassembly and shooting reviews since the mid-2010s, such as detailed functionality breakdowns that showcase its unique gas system and folding mechanism, further amplifying interest among tinkerers.

References

  1. https://modernfirearms.net/en/assault-rifles/u-s-a-assault-rifles/z-m-weapons-lr-300-eng/
  2. https://www.imfdb.org/wiki/Z-M_LR_300
  3. https://www.gunpartscorp.com/gun-manufacturer/zm-weapons
  4. https://www.scribd.com/doc/132787912/ZM-Weapons-Models-LR-300-Series-Rifles
  5. https://www.evolutioninternational.it/our-licenses/z-m-weapons/
  6. https://www.royalrangeusa.com/events-training/the-art-of-reliability
  7. https://www.globalmilitary.net/firearms/lr-300/
  8. https://www.evolutioninternational.it/pdf/EA_HARDCORE_ZM_LR-300_manual.pdf
  9. https://www.militaryfactory.com/smallarms/detail.php?smallarms_id=882
  10. https://www.thefirearmblog.com/blog/2011/10/03/para-usa-exits-rifle-market/
  11. https://www.ar15.com/forums/t_3_118/777426_ZM-Weapons-LR-300-Present-Day-Value.html
  12. https://www.firearmstalk.com/threads/question-about-the-lr300-handgaurd.91715/
  13. https://www.silencershop.com/blog/short-barrel-rifle
  14. https://cults3d.com/en/3d-model/game/lr-300-ml-a-assault-rifle-prop-gun-1-1-scale
  15. https://www.firearmsnews.com/editorial/223-big-game-hunting/504072
  16. https://www.ronspomeroutdoors.com/blog/the-versatile-223-remington
  17. https://www.americanrifleman.org/content/para-usa-tactical-target-rifle/
  18. https://athlonoutdoors.com/article/paras-tactical-target-rifle/
  19. https://www.americanrifleman.org/content/the-ar-for-home-defense-one-expert-s-opinion/
  20. https://rust.fandom.com/wiki/LR-300_Assault_Rifle
  21. https://brain-out.fandom.com/wiki/Weapons
  22. https://www.ar15.com/forums/t_3_118/770964_The-Z-M-LR-300----my-crown-jewel-.html
  23. https://www.youtube.com/watch?v=ZWyId46N-qM
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