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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Aero Precision M4E1 PRO Stripped Lower Receiver – 5.56/.223 (OD Green)
Aero PrecisionAPAR600031AC$316.00The Aero Precision M4E1 PRO Stripped Lower Receiver in OD Green delivers enhanced strength, improved ergonomics, and Aero’s signature PRO forging profile for superior durability. Featuring an integrated trigger guard, flared magwell, and threaded... -
WORKHORSE Complete Rifle Lower with B5 Bravo Stock
Battle Arms DevelopmentWH-B5 Bravo Stock$399.99his complete WORKHORSE Rifle Lower with B5 Systems Bravo Stock is fully assembled and ready for your rifle upper.SKU: WH-LR-R-B5UPC: 810033783913Manufacturer: Battle Arms Development, Inc.Receiver Model: WORKHORSE® (Forged)Type: Semi-Auto... -
Battle Arms Authority Elite Ambidextrous AR15 Lower Receiver – 7075-T6 Billet (Black Anodized)
Battle Arms DevelopmentAE-LR-BLK$359.00Authority Elite Ambidextrous Lightweight Billet AR15 Lower Receiver is a premium foundation for high-performance AR15 builds. Precision machined from 7075-T6 billet aluminum, this lower receiver delivers exceptional strength, lightweight handling, and...
