Explore AR15 parts designed for builds, repairs, upgrades, and custom rifle setups across a wide range of compatible platforms. Whether you need upper parts, lower parts, barrels, handguards, triggers, controls, or other essential components, this category includes options built for proper fit, reliable function, and dependable performance.
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BATTLEARMS WORKHORSE Forged Mil-Spec AR Lower Receiver
Battle Arms DevelopmentWH556-LR$125.00Heavy-duty forged lower receiver — built for longevity, reliability, and Mil-Spec compatibility. Perfect for duty, range, and competition builds. Key Features Forged from 7075-T6 aircraft-grade aluminum for superior strength Mil-Spec... -
BATTLEARMS AUTHORITY ELITE AR-15 Ambidextrous Lightweight Billet Lower Receiver
Battle Arms DevelopmentAUTH-LR$359.95AUTHORITY ELITE AR-15 Ambidextrous Lightweight Billet Lower Receiver Precision CNC billet 7075-T6 aluminum construction — ambidextrous controls, lightweight design, and built for full MIL-SPEC compatibility. Perfect for custom builds and... -
BATTLEARMS WORKHORSE AR15 FORGED RECEIVER SET
Battle Arms DevelopmentWH556-SET$245.00The WORKHORSE AR15 FORGED RECEIVER SET is a matched upper and lower forged from MIL-SPEC 7075-T6 aluminum for builders, armorers, and professionals who demand rock-solid strength and repeatable accuracy. Precision CNC machining ensures tight tolerances... -
BATTLEARMS WORKHORSE FORGED RECEIVER SET - ODG
Battle Arms DevelopmentWH-SET-ODG$245.00The WORKHORSE Forged Receiver Set – ODG combines rugged reliability with precision machining and a distinctive Olive Drab Green anodized finish. Designed for serious shooters, builders, and professionals, this matched upper and lower set provides... -
BATTLEARMS WORKHORSE Complete Rifle Lower — with B5 Bravo Stock
Battle Arms DevelopmentWH-LR-R-B5$399.99Fully assembled and ready for your rifle upper, the WORKHORSE® Complete Rifle Lower ships with a B5 Bravo adjustable stock and enhanced controls for fast, reliable operation. Product: WORKHORSE® Complete Rifle Lower — with B5 Bravo... -
BATTLEARMS AUTHORITY ELITE AMBI SET — Ambidextrous Billet Lower Receiver
Battle Arms DevelopmentAUTHELITE-SET$599.00Authority Ambidextrous Lightweight Billet Lower Receiver — 7075-T6 aircraft-grade aluminum Specifications Precision CNC from billet 7075-T6 aerospace aluminum Patent-pending lightweight design MIL-A-8625F, Type III, Class 2 hard-anodized black... -
BATTLEARMS AR15/M16/M4 Buffer Retainer / Detent
Battle Arms Development8448582$2.50The BATTLEARMS AR15/M16/M4 Buffer Retainer / Detent is a precision-machined small part designed to hold the buffer and spring securely in place within the receiver extension. Essential for proper AR-platform operation, this component ensures smooth... -
BATTLEARMS AR15/M16 Buffer – H3 Heavy Carbine / 4.5 OZ
Battle Arms DevelopmentAR15/M16 BUFFER H3$63.00AR15/M16 Buffer H3 – Carbine Buffer (H3 Weight 5.4 OZ) Brand: Battle Arms Development, Inc.Item: AR15-BUFFER-H3UPC: 810033781148 The BATTLEARMS AR15/M16 Buffer H3 is a Mil-Spec carbine buffer designed for AR15/M16 platforms that use a carbine...
