AR-15, M4, AR-10, and M16 parts include components for maintaining, repairing, upgrading, and customizing popular modern sporting rifle platforms. This category includes replacement parts, internal components, controls, small parts, hardware, and accessories designed for compatible rifle builds and configurations. Whether you are servicing a current rifle, completing a build, or upgrading performance and ergonomics, choosing the correct platform-specific parts helps ensure proper fit and dependable function.
- AR-15 Lowers
- AR-15 Uppers
- AR-15 Triggers
- AR-15 Bolt Carrier Groups / BCG
- AR-15 Stocks
- AR-15 Grips
- AR-15 Buffer / Tubes
- AR-15 Bolt Catch
- AR -15 Magazine Catch
- AR-15 Charging Handles
- AR-15 Safety Selectors
- AR-15 Hand Stops
- AR-15 Forward Assist
- AR-15 Ejection Port Covers & Parts
- AR-15 Handguards & Rails
- AR-15 Barrels
- AR-15 Gas System Parts
- AR-15 Parts & Kits
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Products List
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BATTLEARMS Cast 308 BAD-EBC Enhanced Bolt Catch LR308
Battle Arms Development$9.00BAD-EMC-IC Enhanced Magazine Catch Process: Investment Cast (Same Process as Mil-Spec) Material: 8620 Heat Treated Steel Finish: Black Phosphate Finish Construction: One Piece Engineering (Not Two-Piece) Design: Lightweight Fluted... -
BATTLEARMS Cast 308 BAD-EBC Enhanced Bolt Catch LR308
Battle Arms Development$19.95The Battle Arms Development EBC® (enhanced bolt catch) was designed to be a drop-in upgrade to the existing MIL-SPEC bolt catch. Due to the design of this bolt catch, it provides not only a better purchase on the release portion but the lock... -
BATTLEARMS Billet BAD-EBC Enhanced Bolt Catch AR15
Battle Arms Development$42.00The Battle arms development EBC (enhanced bolt catch) was designed to be a drop-in upgrade to the existing MIL-SPEC bolt catch. Due to the design of this bolt catch, it provides not only a better purchase on the release portion but the lock portion of... -
BATTLEARMS BAD-EBC-IC Enhanced Bolt Catch – AR15 / M16 / M4
Battle Arms Development$17.00BATTLEARMS BAD-EBC-IC Enhanced Bolt Catch – AR15 / M16 / M4 Manufacturer: Battle Arms Development, Inc.Item: BAD-EBC-ICSKU: BAD-EBC-ICUPC: 810033781230 Precision Control. Faster Manipulation. Proven Durability. The BATTLEARMS BAD-EBC-IC Enhanced... -
PRO Safety Replacement Lever - Standard
Battle Arms Development$9.99Qty of 1. BAD-ASS-PRO Replacement Standard Long Lever Compatible with BAD-ASS-PRO family of safeties. BAD-ASS-PRO BAD-ASS-PRO-1522 BAD-ASS-PRO-FA BAD-ASS-PRO-LITE BAD-ASS-PRO-NITE -
BATTLEARMS PRO Safety Replacement Lever - Short
Battle Arms Development$9.99Qty of 1. BAD-ASS-PRO Replacement Short Lever Compatible with BAD-ASS-PRO family of safeties. BAD-ASS-PRO BAD-ASS-PRO-1522 BAD-ASS-PRO-FA BAD-ASS-PRO-LITE BAD-ASS-PRO-NITE -
BATTLEARMS AR15/M16 Ejector / Safety Selector Detent Spring
Battle Arms Development$0.50This quality, high tensile strength spring tensions the Ejector for proper functioning in the Bolt. Its good to replace it any time you disassemble the Ejector parts. -
BATTLEARMS Replacement Pro Series Safety Screw 8-32x1/4
Battle Arms Development$0.30Replacement Screw for BAD-ASS-PRO series of safeties. Not required when purchasing a BAD-ASS-PRO kit. One screw included. -
BATTLEARMS Stainless Steel Safety Detent
Battle Arms Development$1.90AR15/M16 Safety Selector Detent - Heat Treated Stainless Steel Note: (1) One Detent Black Nitride Coated Made in the USA -
BATTLEARMS PRO Series Safety Installation Wrench 5/64 0.0 / 5
Battle Arms Development$0.25Short Arm Hex Key, for BAD-ASS-PRO series of safeties. Included with BAD-ASS-PRO kits. One wrench. -
BATTLEARMS BAD-ASS Elite Ambidextrous Safety Selector
Battle Arms Development$80.00BATTLEARMS BAD-ASS-ELITE Fiber Optic-Ready Lightweight Ambidextrous Safety Selector (AR15 / M16 / M4 / AR9 / AR10) The BAD-ASS-ELITE is a professional-grade, lightweight, ambidextrous semi-auto safety selector designed to improve reliability,... -
BATTLEARMS BAD-ASS-LITE Lightweight Ambidextrous 60/90 Safety Selector – Blue
Battle Arms Development$65.00Battle Arms Development BAD-ASS-LITE Lightweight Ambidextrous 60/90 Safety Selector – Blue (AR15/M16/M4/AR9/AR10) Manufacturer: Battle Arms Development, Inc. Item: BAD-ASS-LITE-BLUE SKU: BAD-ASS-LITE-BLUE UPC: 810033785696 Color: Blue Platform:... -
BATTLEARMS BAD-ASS-NITE Tritium Ambidextrous Safety Selector
Battle Arms Development$149.00BATTLEARMS BAD-ASS-NITE | AR15 Ambidextrous Speed Safety Selector (Aluminum / Tritium) Tritium-illuminated ambidextrous safety selector for fast, confident indexing in low-light conditions. SKU: BAD-ASS-NITE UPC: 810033782558 Overview The Battle... -
BATTLEARMS BAD-ASS-LITE Lightweight Ambidextrous Safety Selector – Red Anodized | AR15/M4/M16/AR10
Battle Arms Development$65.00Battle Arms Development, Inc. – BAD-ASS-LITE Lightweight Ambidextrous 60/90 Safety Selector (Red) Item: BAD-ASS-LITE-RED SKU: BAD-ASS-LITE-RED Model: BAD-ASS LITE UPC: 810033785689 Platform Compatibility: AR15 / M16 / M4 / AR9 / AR10 The best... -
BATTLEARMS BAD-ASS-LITE-ODG Lightweight Ambidextrous 60/90 Safety Selector
Battle Arms Development$65.00BATTLEARMS BAD-ASS-LITE-ODG Lightweight Ambidextrous 60/90 Safety Selector — OD Green (AR15 / M16 / M4 / AR9 / AR10) Lightweight, duty-ready ambidextrous safety selector featuring modular skeletonized levers and a reversible 60° / 90°... -
BATTLEARMS BAD-ASS-LITE Lightweight Ambidextrous Safety Selector / Purple
Battle Arms Development$65.00Battle Arms Development BAD-ASS-LITE Lightweight Ambidextrous 60/90 Safety Selector – Purple (AR15/M16/M4/AR9/AR10) Manufacturer: Battle Arms Development, Inc. Item: BAD-ASS-LITE-PURP SKU: BAD-ASS-LITE-PURP UPC: 810033785641 Color:... -
BATTLEARMS BAD-ASS-LITE Lightweight Ambidextrous Safety Selector lite
Battle Arms Development$65.00Battle Arms Development® BAD-ASS-LITE Lightweight Ambidextrous 60/90 Safety Selector (AR15 / M16 / M4 / AR9 / AR10) The BATTLEARMS BAD-ASS-LITE is the next-generation lightweight ambidextrous safety selector from the innovators who introduced the... -
BATTLEARMS BAD-ASS-PRO Full-Auto Ambidextrous Safety Selector
Battle Arms Development$60.00BATTLEARMS BAD-ASS-PRO-FA Full-Auto Ambidextrous Safety Selector (AR15/M16/M4) Duty-grade, modular ambidextrous safety selector designed for Mil-Spec full-auto AR platforms with Battle Arms’ next-generation locking design. Brand: Battle Arms... -
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. -
BATTLEARMS 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 -
BATTLEARMS Workhorse Gas Block Set Screw
Battle Arms Development$1.95Workhorse Gas Block Set Screw The Workhorse Gas Block Set Screw is a small but important replacement part designed for securing a gas block in place on compatible rifle builds. It is a practical option for repairs, maintenance, and new builds where... -
BATTLEARMS 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 -
BATTLEARMS 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... -
BATTLEARMS 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... -
BATTLEARMS 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... -
BATTLEARMS 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... -
BATTLEARMS 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... -
BATTLEARMS 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... -
BATTLEARMS 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... -
BATTLEARMSRACK 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™... -
BATTLEARMS 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... -
BATTLEARMS 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... -
BATTLEARMS 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 -
BATTLEARMS 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...
