Gun parts are used to repair, maintain, upgrade, customize, or complete a firearm - AR-platform firearms, and other common firearm setups, including replacement parts, build parts, small parts, stocks, grips, triggers, muzzle devices, pins, springs, rails, mounts, and other firearm-related components.
The right parts can help keep a firearm serviceable, easier to use, and better suited for training, home defense, hunting, recreational shooting, or general ownership.
Before ordering, always confirm the part is compatible with your firearm’s make, model, caliber, generation, and configuration. Some parts may require proper tools, installation knowledge, or a qualified gunsmith for safe and correct installation.
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Bolt Carrier Group AR-308 DPMS Pattern Black Nitride Bolt Carrier Group AR-308 DPMS Pattern Black Nitride
Battle Arms Development$250.00BATTLEARMS™ AR308 DPMS Pattern BCG MPI TESTED AND MARKED NITRIDE FINISH INSIDE AND OUTSIDE WITH FORWARD ASSIST CUTS CORRECT AUTO SEAR TRIP LOCATION 9310 HEAD 8620 CARRIER FOR 7.62 NATO, .308 WINCHESTER OR SIMILAR INCLUDES O-RING... -
9MM Blowback AR-15 Enhanced BCG
Battle Arms Development$179.00Enhanced 9mm Blowback AR-15 Bolt Carrier Group is compatible with both COLT and GLOCK magazine configurations. Features reliable AR-15 style extractor claw with O-Ring and spring and broad trigger compatibility with ramped bottom geometry. Charging... -
AR15/M16 Full Auto Titanium BCG Bolt Carrier Group
Battle Arms Development$395.00BATTLEARMS™ AR15/M4 Titanium carrier w/ ArmorTI coating. This carrier fills the space of an M16 profile while reducing weight substantially. Aerospace surface treatment provides ultimate durability and wear resistance. Bolt material... -
BATTLEARMS AR15/M16 Full Auto Enhanced BCG
Battle Arms Development$189.95BATTLEARMS AR15/M16 Full Auto Enhanced BCG (Bolt Carrier Group) | BAD-EBCG-M16 Item: BAD-EBCG-M16 Model: BAD-EBCG-M16 UPC: 810033781162 Brand: Battle Arms Development, Inc. The BATTLEARMS® AR15/M16 Full Auto Enhanced BCG is a duty-ready, full-auto... -
Battle Arms RACK Ambidextrous Charging Handle – AR15/M4/M16 - SIZE D - ANODIZED OD GREEN
Battle Arms Development$129.95The Battle Arms Development RACK Ambidextrous Charging Handle is engineered for strength, reliability, and smooth operation across AR15 platforms. Designed with simplicity and durability in mind, this monolithic charging handle delivers consistent... -
RACK LR-308 Charging Handle
Battle Arms Development$109.00Designed for DPMS pattern 308 platforms. **Not compatiable with Armamlite® AR-10 or SIG716** The RACK™ Ambidextrous Charging Handle was developed by BATTLEARMS® to be the finest charging handle ever produced! It is the toughest... -
RACK Charging Handle AR15 Limited Edition Colors
Battle Arms Development$125.00Special Edition Colors - Limited Run The RACK™ Ambidextrous Charging Handle was developed by BATTLEARMS® to be the finest charging handle ever produced! It is the toughest available for the AR-15, AR-10 and 9mm AR PCC platforms. The RACK™... -
RACK Charging Handle AR15
Battle Arms Development$99.00The RACK™ Ambidextrous Charging Handle was developed by BATTLEARMS® to be the finest charging handle ever produced! It is the toughest available for the AR-15, AR-10 and 9mm AR PCC platforms. The RACK™ charging handle is simplicity at its... -
RACK Charging Handle AR15 Mod C
Battle Arms Development$99.00The RACK™ Ambidextrous Charging Handle was developed by BATTLEARMS® to be the finest charging handle ever produced! It is the toughest available for the AR-15, AR-10 and 9mm AR PCC platforms. The RACK™ charging handle is simplicity at its... -
WORKHORSE 15in Rail and .750 Gas Block Upgrade Kit
Battle Arms Development$214.99WORKHORSE® Rail Upgrade Kit. Upgrade from a front sight base and drop-in handguard to a free-float rail and low-profile gas block. Package includes: 1 - WORKHROSE® 15in Free Float Rail 1 - WORKHORSE® .750 Low Profile Gas Block -
5-SLOT M-LOK Picatinny Rail Section Aluminum
Battle Arms Development$15.99M-LOK Picatinny Rail Section provides an easy way to attach Picatinny rail-mounted accessories to an M-LOK handguard or forend. They are built from lightweight aluminum and available in multiple lengths so you always have just the right amount of rail... -
M-LOK Bipod Stud Aluminum
Battle Arms Development$19.99M-LOK Bipod Mount attaches to any M-LOK style handguard and allows the user to attach a Harris-style stud mounted bipod to the rifle. It features beveled edges to reduce potential snagging. It is also compatible with any other accessory that utilizes... -
3-Slot M-LOK Picatinny Rail Section Aluminum
Battle Arms Development$14.99M-LOK Picatinny Rail Section provides an easy way to attach Picatinny rail-mounted accessories to an M-LOK handguard or forend. They are built from lightweight aluminum and available in multiple lengths so you always have just the right amount of rail... -
Screw - Wood Hand Guard Screw
Battle Arms Development$0.25Replacement Screw For Wood Handguard Kit. / RACK-15 Charging Handle Alloy Steel Low-Profile Socket Head Screw Black-Oxide 8-32 Thread Size 1/4" Long -
Black Laminate Wood 2 Piece Kit (Handguard and Grip)
Battle Arms Development$300.00Black Laminate Wood - 2 Piece Kit Pistol Grip - (1) Screw and Lock washer) Hand-guard - (4) Screws, (4) M-LOK Adapter Nuts Designed to work only with our RIGIDRAIL™ May or May not work with any other rails. *Does Not Come With... -
Wood Front Vertical Grip – Lightweight Picatinny Mount Foregrip / BAD-WOOD-FW
Battle Arms Development$300.00Give your rifle a timeless look with modern functionality using the BATTLEARMS BAD-WOOD-FW Wood Front Vertical Grip. Merging classic hardwood aesthetics with tactical design, this vertical foregrip is built for shooters who want performance and style in... -
M-LOK QD Sling Mount – Aluminum, Black
Battle Arms Development$14.95The Battle Arms M-LOK QD Sling Mount is the ideal solution for adding a quick detach sling point to any M-LOK handguard. Precision CNC-machined from aircraft-grade aluminum and finished in a sleek black anodized coating, this QD mount provides rock-solid... -
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WORKHORSE Rail Replacement Barrel Nut Hardware
Battle Arms Development$29.00Replacement Hardware for WORKHORSE series rails. Includes: 1 Barrel Nut 1 Wedge-Lock 3 Screws -
WORKHORSE Rail Install Wrench
Battle Arms Development$8.00WORKHORSE® Rail Barrel Nut Wrench 1-3/16 Crows Foot -
Carbon Fiber Hand Guard 10in M-LOK
Battle Arms Development$289.00BATTLEARMS™ Carbon Fiber Hand Guard 10in MLOK The properties of the carbon fiber, specifically its low thermal mass combined with its high thermal conductivity, and the pattern in which the material orientation is laid out, creates the most... -
WORKHORSE 15in Free Float Rail M-LOK
Battle Arms Development$175.00The WORKHORSE® M-LOK® compatible rail system was designed to be a lightweight and slimline option to be used on MIL-SPEC carbines available on the market today. With M-LOK® mounting options at the 3.6, and 9 o'clock positions and... -
BATTLE ARMS WORKHORSE® 13in Free Float Rail M-LOK
Battle Arms Development$175.00The WORKHORSE® M-LOK® compatible rail system was designed to be a lightweight and slimline option to be used on MIL-SPEC carbines available on the market today. With M-LOK® mounting options at the 3.6, and 9 o'clock positions and... -
WORKHORSE 9.5in Free Float Rail M-LOK
Battle Arms Development$160.00The WORKHORSE® M-LOK® compatible rail system was designed to be a lightweight and slimline option to be used on MIL-SPEC carbines available on the market today. With M-LOK® mounting options at the 3.6, and 9 o'clock positions and... -
WORKHORSE 6.7in Free Float Rail M-LOK
Battle Arms Development$130.00The WORKHORSE® MLOK compatible rail system was designed to be a lightweight and slimline option to be used on MIL-SPEC carbines available on the market today. With MLOK mounting options at the 3.6, and 9 o'clock positions and skeletonized areas where... -
BATTLE ARMS WORKHORSE 4in Free Float Rail M-LOK
Battle Arms Development$120.00The WORKHORSE® M-LOK® compatible rail system was designed to be a lightweight and slimline option to be used on MIL-SPEC carbines available on the market today. With M-LOK® mounting options at the 3.6, and 9 o'clock positions and... -
Carbon Fiber HeatShield
Battle Arms Development$79.00Designed for use with WORKHORSE® rail system. Protect hands from barrel heat. Molded design for a perfect fit Easy to mount. Lightweight 35-50 Carbon Fiber Hand-made in the USA. -
AR10/LR308 - Ejection Port Cover Pin
Battle Arms Development$3.50The machined steel Ejection Port Cover Rod is the hinge pin that keeps the Ejection Port Cover in place. Unlike the AR15 version, it needs no c-clip. -
AR10/LR308 Ejection Port Cover Door
Battle Arms Development$9.00.308 ejection port door to build out your stripped .308 upper. Works with .308 upper receivers Door Constructed from Stamped Steel Mil-Spec Heavy Phosphate Coating Weight: .53oz -
AR15/M16 - Ejection Port C-Clip
Battle Arms Development$1.00AR15/M16 - Ejection Port C Clip These high quality components will provide excellent fit and reliable function in your AR series rifle and are perfect for upgrading existing components or replacing worn or broken parts. -
AR15/M16 - Ejection Port Cover Spring
Battle Arms Development$1.00AR15/M16 - Ejection Port Cover Spring These high quality components will provide excellent fit and reliable function in your AR series rifle and are perfect for upgrading existing components or replacing worn or broken parts. -
AR15/M16 - Ejection Port Cover Door
Battle Arms Development$6.00AR15/M16 - Ejection Port Cover Door - No Clip,Pin or Spring These high quality components will provide excellent fit and reliable function in your AR series rifle and are perfect for upgrading existing components or replacing worn or broken parts. -
Custom Design Engraved Ejection Port Cover
Battle Arms Development$15.95Custom Shop - Laser Engraved Dust Covers / Ejection Port Covers Single AR15/M16 Dust Cover Engraving On Inside Of Dust Cover No hardware included. Does Not Include Spring Ejection Port Rod Ejection Port Rod C-Clip -
Caliber Engraved Ejection Port Cover
Battle Arms Development$15.95Custom Shop - Laser Engraved Dust Covers / Ejection Port Covers Single AR15/M16 Dust Cover Engraving on Inside of Dust Cover. No hardware included. Does Not Include Spring Ejection Port Rod Ejection Port Rod C-Clip -
AR15/M16 - Ejection Port Cover Assembly
Battle Arms Development$7.99AR15/M16 Ejection Port Cover Assembly Includes: Ejection Port Cover Door Ejection Port Cover Rod with c-clip Ejection Port Cover Spring -
WORKHORSE Upper 16in 5.56 NATO 1:7 15in M-LOK - Without BCG or CH
Battle Arms Development$524.00Barrel:Rosco Manufacturing 16in 4150V Chrome Moly Vanadium steel barrel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. The barrel is finished with a .750" diameter low-profile gas block, WORKHORSE 15in M-Lok... -
BCG or CH WORKHORSE® Upper 10.5in 5.56 NATO 1:7 9.5in M-LOK® - Without BCG or CH WORKHORSE Upper 10.5in 5.56 NATO 1:7 9.5in M-LOK - Without BCG or CH
Battle Arms Development$529.99Barrel: Rosco Manufacturing 10.5in 4150V Chrome Moly Vanadium steel barrel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. The barrel is finished with a .750" diameter low-profile gas block, WORKHORSE 9.5in... -
WORKHORSE Complete Rifle Lower with B5 Bravo Stock
Battle Arms Development$399.99his complete WORKHORSE Rifle Lower with B5 Systems Bravo Stock is fully assembled and ready for your rifle upper.SKU: WH-LR-R-B5UPC: 810033783913Manufacturer: Battle Arms Development, Inc.Receiver Model: WORKHORSE® (Forged)Type: Semi-Auto... -
Billet Dedicated Pistol Caliber Upper Receiver 7075-T6
Battle Arms Development$259.95The Battle arms development dedicated PCC upper was designed to be a lightweight and rugged option when it comes to pistol caliber upper receiver groups. Even though it is matched perfectly with our XIPHOS™ lower receiver, this upper receiver will... -
BATTLE ARMS BAD556-LW Lightweight 7075-T6 Billet Upper Receiver
Battle Arms Development$529.95Specifications: Precision CNC from Billet 7075-T6 Aerospace Aluminum Patent Pending Lightweight Design M4 Feed Ramp Machined T-Marks Laser Engraved Logo MIL-A-8625F, Type III, Class 2, Hard Anodized Flat Black Finish Compatible with TDP/Mil Standard AR...
