AR-15, AR-10, and M16 parts are used for building, repairing, upgrading, and maintaining compatible rifle platforms across a wide range of configurations and applications. They can include barrels, handguards, triggers, controls, upper and lower parts, gas system components, stocks, grips, and other essential pieces that support fit, function, and overall rifle performance. Different parts serve different roles depending on the platform, build goal, and intended use. This category includes AR-15, AR-10, and M16 parts built for compatibility, dependable function, and practical everyday performance.
- AR-15 Lowers
- AR-15 Uppers
- AR-15 Triggers
- AR-15 Stocks
- AR-15+ Grips
- AR-15 Buffer Tubes
- AR-15 Bolt Catch
- AR-15 BCGs / Bolts
- AR-15 Charging Handles
- AR-15 Safety Selectors
- AR-15 Hand Stops
- AR-15 Forward Assist
- AR-15 Ejection Port / Parts
- AR-15 Handguards / Rails
- AR-15 Barrels
- AR-15 Parts / Kits
- AR-15 Gas System Parts
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Products List
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BATTLEARMS BAD-ASS-PRO M&P15-22 Reversible 90/60 Ambidextrous Safety Selector
Battle Arms Development$54.00BATTLEARMS BAD-ASS-PRO M&P15-22 Reversible 90/60 Ambidextrous Safety Selector Duty-grade, modular ambidextrous safety selector built specifically for the Smith & Wesson® M&P®15-22 platform, featuring reversible 90° / 60°... -
BATTLEARMS BAD-ASS-LITE Ambidextrous 60/90 Safety Selector (AR15 / AR10 / AR9)
Battle Arms Development$45.00Battle Arms Development BAD-ASS-PRO Reversible 90/60 Ambidextrous Safety Selector (AR15 / M16 / M4 / AR9 / AR10) The BATTLEARMS BAD-ASS-PRO is a professional-grade, duty-ready ambidextrous semi-auto safety selector engineered for maximum reliability,... -
BATTLEARMS BAD-E4S-IC Enhanced Single Side Safety Selector
Battle Arms Development$16.00BATTLEARMS BAD-E4S-IC Enhanced Single Side Safety Selector (0°–90°) — AR15 / M16 / M4 / AR9 / AR10 The BAD-E4S-IC is an enhanced single-side safety selector for AR-style rifles, built with Battle Arms’ signature diagonal... -
BATTLEARMS M-LOK Handstop
Battle Arms Development$19.99Micro Hand Stop is a great way to keep a secure grip on your firearm without letting your hand slip too far forward. This hand stop is compact and lightweight, keeping your firearm nimble for target transition. Features: 6061-T6... -
BATTLEARMS Mil-Spec Forward Assist Assembly Round AR-15, LR-308 Matte
Battle Arms Development$14.95Assembly Includes: (1) Forward Assist (1) Forward Assist Spring (1) Forward Assist Roll Pin -
BATTLEARMS AR15/M16 - Ejection Port Cover Pin
Battle Arms Development$2.00AR15/M16 - Ejection Port Cover Pin 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 Gas Tube
Battle Arms Development$16.50AR15/M16 Gas Tube Stainless Steel Gas Tube for AR15 & AR10 rifles Available Length: Pistol 6.6875in, Carbine 9.8in, Mid 11.75in, Rifle 15.125 Black Melonite or Stainless Steel Finish Made in the USA -
Screw - Gas Block Set Screw
Battle Arms Development$1.95Replacement Gas Block Set Screw 10-32 Thread 3/16in Long Stainless Steel Qty of 1. -
Gas Block Roll Pin - Stainless Steel
Battle Arms Development$1.00Replacement Gas Tube/Block Roll Pin 18-8 Stainless Steel Slotted Spring Pin 5/64in Diameter 5/16in Long -
WORKHORSE Low Profile Steel Gas Block .750 WORKHORSE® Low Profile Steel Gas Block .750
Battle Arms Development$34.95WORKHORSE® Low Profile Steel Gas Block .750 was designed to be a low profile gas block for the masses. It will fit under the majority of hand-guards made. Weighing in at .85oz with the screws. It will work with barrels using a .750in... -
Battle Arms BAD-LGB Light Weight Low Profile Steel Gas Block .750
Battle Arms Development$49.95WORKHORSE Low Profile Steel Gas Block .750 The Battle Arms Development WORKHORSE Low Profile Steel Gas Block .750 is a rugged, no-nonsense gas block built for dependable performance on AR-platform rifles. Precision machined from steel and finished for... -
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
