Browse gun parts designed for maintenance, replacement, upgrades, repairs, and custom firearm builds across a wide range of compatible platforms. Whether you need barrels, triggers, springs, pins, controls, or other essential components, this category includes options built for proper fit, reliable function, and dependable performance.
Products List
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BATTLEARMS WORKHORSE FORGED LOWER RECEIVER ANODIZED OD GREEN — AR15 / M16 / M4
Battle Arms DevelopmentWH556-LR-ODG$125.00Durable forged 7075-T6 lower receiver with MIL-A-8625F Type III OD Green anodize — built for heavy use, precise fit, and Mil-Spec compatibility. Key Features Forged from 7075-T6 aircraft-grade aluminum for proven strength and... -
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 AR15/M4 Lightweight 7075-T6 Billet Upper Receiver
Battle Arms DevelopmentBAD556-LW-UR$259.95Lightweight 7075-T6 billet AR15/M4 upper — precision machined, optics-ready, and built for durability and drop-in compatibility with Mil-Spec components. Key Features Forged & CNC machined from aerospace-grade 7075-T6 aluminum Lightweight,... -
BATTLEARMS XIPHOS AR9 LIGHTWEIGHT 9MM Dedicated PCC Upper Receiver — 7075-T6
Battle Arms DevelopmentBAD-PCC-UR$259.95Dedicated 9mm PCC upper built from 7075-T6 — lightweight, robust, and optimized for reliability with common 9mm blowback bolt carrier groups and PCC magazines. Key Features Forged & CNC machined from aerospace-grade 7075-T6... -
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...
