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 Mil-Spec 6 Position Carbine Buffer Tube OD Green
Battle Arms Development$49.95Mil-Spec Receiver Extension / Buffer Tube, 6 Position Features: Mil-Spec Carbine Length Receiver Extension / Buffer Tube 6 Positions Precision CNC from 7075T6 Aircraft Grade Aluminum Impact Forging Anodized OD Green Color Made in the USA -
BATTLEARMS Mil-Spec AR15 LR308 Single Stage Trigger Kit
Battle Arms Development$45.95Single Stage Mil-Spec Trigger Includes Phosphate Mil-Spec Trigger Rounded Hammer Disconnector Trigger Spring Hammer Spring Disconnector Springs Trigger and Hammer Pins with a Black Oxide Finish -
BATTLEARMS EKG AK Trigger Kit
Battle Arms Development$39.95BAD-EKG... Powering the Kalashnikov heart within you. Features: Maximum compatibility with most standard production AK patterned firearms. Enhanced hammer geometry to eliminate that "hump" feel when charging the AK, to give you that smooth custom... -
Polished Nickel Teflon Enhanced Trigger Kit
Battle Arms Development$49.99nhanced Nickel Teflon trigger assembly features smooth,precision-machined engagement surfaces and Nickel Teflon coating that removes the grittiness found in mil-spec triggers and provides a cleaner "break”. This single-stage trigger is functionally... -
Adjustable Friction-less Trigger
Battle Arms Development$268.00Battle Arms Development Special Edition Trigger by Triggertech Repeatable User Adjustable Trigger Pull from ~2 to 5 lbs with click feedback indications Frictionless Release Technology (FRT)™ Zero Creep Short Two Stage... -
Enhanced Complete Lower Parts Kit
Battle Arms Development$135.00BAD-LPK-PKX Enhanced Complete Lower Parts Kit Consisting of the following: BAD-EBC-IC Enhanced Bolt Catch Cost friendly alternative Lightweight but Robust Design 0.39oz Compatible with Norgon Ambi-Catch Without Interference Raised "T-Shaped" Heel... -
3 Piece Enhanced Lower Parts Kit
Battle Arms Development$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
Battle Arms Development$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
Battle Arms Development$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
Battle Arms Development$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
Battle Arms Development$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 Green Aluminum Enhanced Takedown / Pivot Pin Set
Battle Arms Development$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
Battle Arms Development$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
Battle Arms Development$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
Battle Arms Development$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
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... -
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... -
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. -
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. -
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... -
BBATTLEARMS 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. -
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
