AR lowers are the lower receiver assemblies or components used as the foundation for compatible AR-platform rifle builds. They house key fire control and magazine-related parts while helping determine fit, function, and overall configuration during builds, repairs, and upgrades. Different AR lower options can affect compatibility, controls, material, and setup style depending on the project. This category includes AR lowers built for proper fit, dependable function, and practical everyday performance.
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MDT Sporting Goods Inc MDT 115006BLK Hunting Bottom Metal for Tikka T3X LA
MDT SPORTING GOODS INC990482727123$299.99MDT 115006BLK HUNTING BOTTOM METAL TIKKA T3X LA The MDT 115006BLK Hunting Bottom Metal is designed specifically for the Tikka T3X LA rifle platform, providing a durable and reliable upgrade for hunters seeking enhanced performance. Made from high-quality... -
MDT Sporting Goods Inc MDT 110108BLK Hunting Bottom Metal for Tikka T3X
MDT SPORTING GOODS INC185433$299.99Mdt Sporting Goods Inc 110108BLK Hunting Bottom Metal for Tikka T3x The MDT 110108BLK Hunting Bottom Metal for Tikka T3X is crafted with precision machining using durable aluminum material, providing reliable performance in both field and range... -
MDT Sporting Goods Inc 110110BLK Hunting Bottom Metal for Savage SA with Anodized Aluminum Finish
MDT SPORTING GOODS INC185434$299.99Mdt Sporting Goods Inc 110110BLK Hunting Bottom Metal for Savage 110 The MDT 110110BLK Hunting Bottom Metal is crafted with precision machining from durable anodized aluminum, ensuring reliable performance in the field and at the range. Its robust... -
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 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... -
AERO AR9 COMPLETE LOWER 9/40 BLK
Aero PrecisionAPAR620550$359.99AERO AR9 COMPLETE LOWER 9/40 BLK – PREMIUM LOWER RECEIVER FOR 9MM & 40 S&W AR BUILD The AERO AR9 COMPLETE LOWER 9/40 BLK is a high-quality, fully assembled lower receiver designed for 9mm and .40 S&W AR-9 builds. Manufactured by Aero... -
Aero Precision M4E1 PRO Stripped Lower Receiver 5.56/.223 – Kodiak Brown
Aero PrecisionAPAR600032AC$316.00Build a modern AR-15 from the ground up with the Aero Precision M4E1 PRO Stripped Lower Receiver in Kodiak Brown. This premium ambidextrous lower takes the proven M4E1 footprint and upgrades it with mirrored controls, enhanced ergonomics, and a rugged... -
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...
