Recent from talks
Nothing was collected or created yet.
Vertical forward grip
View on WikipediaThe examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject. (November 2017) |

A vertical forward grip or foregrip is a vertical pistol grip mounted on the fore-end of a long-barrel firearm, designed for grasping by the frontal support hand (or "off hand").
Use
[edit]
Forward grips aid in the maneuverability of the firearm, since the natural angle of a person's outstretched hand is more oriented to grasping objects at a vertical angle, rather than a horizontal one perpendicular to the body.[1] Foregrips can decrease accuracy in precision rifle shooting if the shooter tends to "muscle the weapon".[2]
Vertical foregrips can have features located inside the inner diameter, such as a deployable bipod inside the grip's housing.[3] The grip may also have a tactical light and the control switches molded into the grip's assembly. Other designs may contain storage space for spare parts, spare batteries for optics, weapon lights, or small first aid gear.
Stubby grip
[edit]
A shorter version is referred to as a "stubby grip" and is primarily intended to keep the shooter's hand from moving forward of the muzzle.[2]
Angled forward grip
[edit]
Angled forward grips can provide similar functionality to vertical forward grips. They differ in that a vertical foregrip is more useful for "driving" the weapon, while an angled foregrip is more effective at pulling the weapon into the shooter's shoulder while keeping the offhand wrist in a comfortable and manageable position, which helps with accuracy. Some angled foregrips are designed to be used with the C Clamp grip which allows good pointability (as vertical foregrips allow) as well as better accuracy because of the shooter's more firm purchase on the weapon. [4]
Legality on pistols in the U.S.
[edit]The legality of vertical foregrips on pistols in the United States is unclear. In the United States, firearms are categorized by the National Firearms Act and firearms manufactured with specific features are subject to restrictions and controls.
In May 1993, in response to legal action brought by the Bureau of Alcohol, Tobacco, and Firearms (ATF), the South Carolina District Court's finding of fact concluded that a pistol modified with the addition of vertical fore grips was still a pistol and not any other weapon device.[5]
In an open letter sent to Federal Firearms Licensees in April 2006, the ATF stated their interpretation of the law: that installing a vertical forward grip on a handgun is the same as manufacturing an Any Other Weapon (AOW) category firearm and subject to registration and taxation, with significant penalties for manufacturing or possessing such an unregistered weapon.[6]
The ATF has stated that angled grips do not make an AOW from a handgun.[7]
See also
[edit]References
[edit]- ^ Mann, Richard A. (30 April 2014). Gun Digest Shooter's Guide to the AR-15. Iola, Wisconsin: Krause Publications. p. 105. ISBN 978-1-4402-3847-5.
- ^ a b Jane's International Defense Review: IDR. Jane's Information Group. July 2000. pp. 61–62.
- ^ "M4 Grip Pod Popular in the Field". 28 November 2017.
- ^ Bob Boyd (29 July 2011). "Magpul Angled Fore Grip (AFG2)". Shooting Illustrated.
- ^ U.S. v. Davis, Cr. No. 8:93-106, Report of Magistrate
- ^ U.S. Department of Justice, Open letter to Federal Firearm Licensees concerning Adding a Vertical Fore Grip to a Handgun. Published April 10, 2006.
- ^ ATF Letter 903050:MCP. 3311/2010-1021. 30 August 2010. Online version.
External links
[edit]Vertical forward grip
View on GrokipediaHistory
Origins and Early Development
The vertical forward grip traces its origins to early submachine guns designed for automatic fire, where it facilitated better muzzle control and operator stability. The Thompson submachine gun, prototyped in 1918 and commercially produced starting in 1921, incorporated a vertical foregrip in its initial models to counter recoil during sustained bursts, a feature particularly valued in close-range engagements.[4] U.S. Marines adopted Thompsons with vertical foregrips as standard issue in the interwar period, while British orders retained them until the horizontal foregrip supplanted the design on the M1928A1 variant around 1928 for compatibility with sling swivels.[5] This configuration addressed the causal need for a perpendicular hand position to absorb vertical recoil forces inherent to high-rate fire, predating widespread use on rifles due to traditional wooden handguards limiting modularity.[6] Early development as a modular accessory for rifles accelerated in the late 20th century amid demands for enhanced ergonomics in special operations. The U.S. Special Operations Command's SOPMOD program, established in September 1989 to upgrade the M4 carbine, integrated vertical foregrips to support C-clamp and palm-up holds, drawing from submachine gun precedents while adapting to Picatinny rail systems introduced in the 1990s.[7] Improvised grips—often fabricated from broom handles or PVC piping—emerged on AR-15 variants in the late 1980s and early 1990s among tactical users seeking similar control without integrated designs.[8] A pivotal advancement occurred in 1995, when Knight's Armament Company released the first standardized, rail-mountable vertical foregrip for military adoption, enabling precise attachment to the M4's forward rail and formal inclusion in SOPMOD Block I kits by the late 1990s.[8] This shift reflected empirical testing showing reduced wrist strain and improved pointability under dynamic firing conditions, transitioning the grip from niche SMG feature to essential rifle enhancement.[6]Military Adoption and Evolution
The vertical forward grip entered U.S. military service in the mid-1990s as part of the Special Operations Peculiar Modification (SOPMOD) program, which aimed to enhance the modularity of the M4 carbine and similar platforms for special operations forces. Knights Armament Company developed the first standalone vertical grip compatible with MIL-STD-1913 rails, receiving military contracts that facilitated its integration onto Rail Adapter Systems (RAS) and Rail Interface Systems (RIS). This adoption addressed the challenges of mounting multiple accessories, such as lasers and lights, which crowded traditional handguards and necessitated improved forward control for recoil management during suppressive or close-quarters fire.[8][2] SOPMOD Block I, with development roots in the early 1990s and initial fielding around 1997, standardized vertical grips within U.S. Special Operations Command kits, enabling operators to maintain a two-handed stance for enhanced stability in dynamic engagements. Early designs emphasized polymer construction for lightweight durability, allowing grips to serve as handstops or monopod substitutes in prone positions. By the early 2000s, these grips proliferated during operations in Afghanistan and Iraq, where they supported rapid target acquisition and muzzle discipline under full-auto fire rates exceeding 700 rounds per minute.[7][9] Military evolution reflected tactical shifts toward modular weapon systems, with vertical grips evolving from basic cylindrical forms to ergonomic variants incorporating storage compartments or bipod integration, as seen in the Grip Pod system adopted across U.S. Army, Marine Corps, Air Force, and National Guard units by the mid-2000s. However, post-2010 assessments noted limitations in certain stances, prompting transitions to shorter "stubby" grips or angled foregrips for compatibility with modern C-clamp holds that prioritize barrel alignment and speed. Despite this, vertical grips remain in select special operations and foreign military inventories, underscoring their proven utility in high-volume fire scenarios over two decades of asymmetric warfare.[10][11]Design and Technical Specifications
Core Components and Ergonomics
The core components of a vertical forward grip include a mounting base, a vertical grip shaft, and optional integrated features such as storage compartments or modular attachments. The mounting base typically employs a Picatinny-compatible clamp or adapter secured by thumbscrews or locking mechanisms to ensure stability on rail systems, allowing for precise positioning along the fore-end.[12] The grip shaft, perpendicular to the rail, features an ergonomic contour designed for the support hand to wrap around securely, often with aggressive texturing on the front and sides to prevent slippage under stress or with gloved hands.[13] Some models incorporate water-resistant compartments within the shaft for tools or batteries, accessed via screw caps that maintain structural integrity.[14] Ergonomically, vertical forward grips promote a neutral wrist position and full palm grasp, enabling the shooter to apply downward and rearward pressure to counter muzzle rise and enhance control during recoil impulses.[15] Optimal placement positions the grip as far forward as arm extension allows, aligning the support elbow under the barrel to minimize torque and fatigue over extended engagements.[6] This configuration supports instinctive pointing and rapid target transitions by leveraging the hand's natural strength, though individual fit varies by hand size and shooting stance, necessitating adjustable or contoured designs for comfort.[16] Studies on firearm handling indicate such grips reduce operator strain compared to bare handguards, particularly in high-volume fire scenarios.[17] Variations in grip angle and palm swell address ergonomic preferences, with steeper angles aiding in pulling the firearm into the shoulder for better retention under dynamic movement.[18] However, improper height or insufficient clearance can induce cramping, underscoring the need for user-specific adjustments to avoid compromising trigger access or sight alignment.[19]Materials and Manufacturing Variations
High-strength polymers dominate the material selection for vertical forward grips due to their lightweight properties and adequate impact resistance, with common compositions including fiberglass-reinforced nylon and glass-infused nylon blends that provide tensile strengths exceeding 100 MPa while maintaining densities around 1.4 g/cm³.[20][21] Aluminum alloys, such as 6061-T6, are favored for applications requiring enhanced rigidity and corrosion resistance, offering yield strengths up to 276 MPa but adding 2-3 times the weight of equivalent polymer variants.[22][23] These material choices reflect trade-offs in ballistic impact tolerance and thermal stability, where polymers excel in cost-effective volume production and aluminum in sustained high-stress scenarios. Manufacturing variations stem from material demands: polymer grips are predominantly produced through injection molding, a process involving molten resin injection into precision steel molds at pressures of 100-150 MPa, followed by rapid cooling to form ergonomic shapes with integrated texturing or storage voids in under 30 seconds per cycle.[24] This method enables scalable output with tolerances of ±0.1 mm and minimal post-processing, though it requires careful mold design to avoid warping from uneven shrinkage rates of 0.5-1.5%. Aluminum grips, conversely, rely on CNC machining from billet stock, utilizing multi-axis mills to carve complex contours and mounting interfaces with surface finishes below 3.2 µm Ra, a labor-intensive approach that supports customization like reversible serrations but elevates per-unit costs by factors of 3-5 over molded polymers.[25][26] Hybrid manufacturing techniques appear in specialized variants, such as overmolding rubber pads onto polymer or aluminum cores for improved wet-weather traction via durometer ratings of 50-70 Shore A, or two-piece polymer assemblies that disassemble for battery storage without compromising structural integrity under 500 N loads.[27][28] These adaptations address ergonomic variations, with military-grade grips prioritizing MIL-STD-810 compliance for drop and vibration testing, while civilian models emphasize modularity for rail systems like M-LOK or Picatinny.[29]Types and Variants
Stubby Vertical Grips
Stubby vertical grips, also known as stubby foregrips, are compact variants of vertical forward grips measuring approximately 3 to 3.5 inches in length, designed to provide a secure hand placement on shorter rail systems without extending excessively beyond the handguard.[30] Unlike full-length vertical grips, which offer greater downward leverage for recoil mitigation on longer barrels, stubby models prioritize minimalism to suit personal defense weapons (PDWs), short-barreled rifles, and modern carbine configurations where rail space is limited.[31] This design facilitates techniques such as the thumb-over-bore or C-clamp hold, positioning the support hand closer to the bore axis for enhanced muzzle control during rapid fire.[32] Key features of stubby vertical grips include lightweight construction—often under 3 ounces—using materials like reinforced polymers or aluminum, and compatibility with mounting systems such as Picatinny, M-LOK, or KeyMod rails.[33] For instance, the TangoDown Stubby Vertical Foregrip (model BGV) weighs 2.56 ounces, measures 3.5 inches, and incorporates a secure Picatinny attachment without internal storage compartments to reduce bulk and potential snag points.[30] Similarly, Knights Armament Company (KAC) stubby grips emphasize durability for high-stress environments, while Magpul's Rail Vertical Grip (RVG) offers an ergonomic palm swell for consistent hand indexing at a lower cost.[32] [34] Advantages of stubby grips over full vertical foregrips include reduced overall weapon length and weight, which improve maneuverability in confined spaces, and decreased interference with suppressors or extended magazines.[35] They also mitigate wrist strain in aggressive shooting stances by allowing a more neutral angle, though they provide less vertical leverage for managing heavy recoil compared to longer grips.[36] Adoption has grown with the prevalence of modular rail systems since the early 2010s, particularly in military and tactical applications emulating U.S. Special Operations configurations, where TangoDown and KAC models replicate issue equipment for Block 1-era rifles.[34] [37]| Manufacturer | Model | Length (inches) | Weight (oz) | Key Features |
|---|---|---|---|---|
| TangoDown | BGV Stubby | 3.5 | 2.56 | Polymer construction, Picatinny mount, no storage[30] |
| Knights Armament | Stubby VFG | ~3.25 | ~2.5 | Aluminum-reinforced, tactical durability[32] |
| Magpul | RVG | 3.25 | 3.0 | Ergonomic swell, M-LOK compatible variants[34] |
| RailScales | RSB | ~3.0 | Ultralight (<2) | Machined aluminum, PDW-optimized[31] |
.jpg)