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.
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3 Piece Enhanced Lower Parts Kit
$35.00BAD-LPK-PK3 3 Piece Enhanced Lower Parts Kit Consisting of the following: Enhanced Bolt Catch (BAD-EBC-IC), which is a cost-friendly alternative, without sacrificing the quality for your AR build! The AR-15 Cast Enhanced Bolt Catch is 8620 heat... -
BATTLE ARMS BAD-QRRTP - Quick Release Rear Takedown Pin
$30.00BAD-QRRTP Quick Release Rear Takedown Pin Features: Dual Function Easy Pull Head CNC Machined Comes with Detent and Spring Made in the USA! Patent US10101107B1 -
BATTLEARMS BAD-EPS-308 (Enhanced Pin Set) LR-308/SR-25/AR308
$29.95BATTLEARMS – BAD-EPS Enhanced Takedown & Pivot Pin Set (AR15/M16/M4/AR9) Item: BAD-EPS SKU: BAD-EPS UPC: 810033780394 Platform Compatibility: AR15 / M16 / M4 / AR9 The BATTLEARMS BAD-EPS® Enhanced Takedown and Pivot Pin Set upgrades one... -
BATTLEARMS AR15/M16 Takedown & Pivot Pin Detent Spring – AR15 Mil-Spec Replacement Part
$0.75Replace worn or lost detent springs in your AR15 or M16 rifle with this high-quality Mil-Spec spring from Battle Arms Development. Precision-engineered for reliability and durability, it’s perfect for custom builds, repairs, or routine maintenance... -
BATTLEARMS BAD-EPS FDE Aluminum Enhanced Takedown and Pivot Pin Set
$29.95Battle Arms Development Enhanced Pin Set (BAD-EPS) for the AR15 / M16 / M4 style rifles. The BAD-EPS features the following improvements and features: Precision Swiss CNC machined. AR15 / M16 / M4 Compatible - Fits all AR15/M16/M4 lower receivers with... -
BATTLEARMS BAD-EPS OD Green Aluminum Enhanced Takedown and Pivot Pin Set
$29.95Battle Arms Development Enhanced Pin Set (BAD-EPS) for the AR15 / M16 / M4 style rifles. The BAD-EPS features the following improvements and features: Precision Swiss CNC machined. AR15 / M16 / M4 Compatible - Fits all AR15/M16/M4 lower receivers with... -
BATTLEARMS BAD-EPS Purple Aluminum Enhanced Takedown and Pivot Pin Set
$29.95Battle Arms Development Enhanced Pin Set (BAD-EPS) for the AR15 / M16 / M4 style rifles. The BAD-EPS features the following improvements and features: Precision Swiss CNC machined. AR15 / M16 / M4 Compatible - Fits all AR15/M16/M4 lower... -
BATTLEARMS BAD-EPS Blue Aluminum Enhanced Takedown and Pivot Pin Set
$29.95Battle Arms Development Enhanced Pin Set (BAD-EPS) for the AR15 / M16 / M4 style rifles. The BAD-EPS features the following improvements and features: Precision Swiss CNC machined. AR15 / M16 / M4 Compatible - Fits all AR15/M16/M4 lower... -
BATTLEARMS BATTLE ARMS BAD-EPS Enhanced Takedown and Pivot Pin Set AR15
$29.00Battle Arms Development Enhanced Pin Set (BAD-EPS) for the AR15 / M16 / M4 style rifles. The set consists of the Enhanced Take-down Pin (BAD-ETP) and Enhanced Pivot Pin (BAD-EPP). Precision Swiss CNC machined from round stock steel bars,... -
BATTLEARMS Cast 308 BAD-EBC Enhanced Bolt Catch LR308
$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... -
Cast 308 BAD-EBC Enhanced Bolt Catch LR308
$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... -
Billet BAD-EBC Enhanced Bolt Catch AR15
$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
$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
$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
$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
$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. -
Replacement Pro Series Safety Screw 8-32x1/4
$0.30Replacement Screw for BAD-ASS-PRO series of safeties. Not required when purchasing a BAD-ASS-PRO kit. One screw included. -
Stainless Steel Safety Detent
$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
$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
$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
$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
$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
$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
$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
$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
$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... -
BBATTLEARMS BAD-ASS-PRO Full-Auto Ambidextrous Safety Selector
$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
$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)
$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
$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
$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
$14.95Assembly Includes: (1) Forward Assist (1) Forward Assist Spring (1) Forward Assist Roll Pin -
BATTLEARMS AR15/M16 - Ejection Port Cover Pin
$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
$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
$1.95Replacement Gas Block Set Screw 10-32 Thread 3/16in Long Stainless Steel Qty of 1. -
Gas Block Roll Pin - Stainless Steel
$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
$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
$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
$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
$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...