Lower Receivers
Gas & Brass Armory offers a full selection of AR-15 lower receivers in Brandon, FL—perfect for your next rifle build or upgrade. Choose from trusted brands like Aero Precision, Anderson, BCM, and more. Whether you're looking for stripped lowers for a custom build or complete lowers ready to pin on your upper, we have durable, mil-spec components to fit your needs. Visit us in-store or shop online with confidence.
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FORTIS LICENSE GEN II AR15 SET AMBI
Fortis Manufacturing Inc.
MSRP: $516.50$414.00The Fortis License Gen II AR15 Set Ambi from Fortis Manufacturing Inc. is a precision-engineered lower and upper receiver set designed for AR15 platforms. Crafted from durable 7075 T6 billet aluminum, this set offers exceptional strength and lightweight...MSRP: $516.50$414.00 -
BCM LOWER GROUP W/BCM STK MOD0 FDE
Bravo Company
MSRP: $603.75$525.00The BCM Lower Group with BCM Stock Mod0 in Flat Dark Earth is a precision-engineered lower receiver assembly designed by Bravo Company. This complete lower group features a durable matte finish and includes an enhanced trigger guard, quick-detach end...MSRP: $603.75$525.00 -
BCM GUNFIGHTER LOWER GROUP SPMD BLK
Bravo Company
MSRP: $603.75$525.00The Bravo Company BCM GUNFIGHTER LOWER GROUP SPMD BLK is a meticulously engineered AR-15 lower receiver designed to meet military specifications for durability and compatibility. Crafted from 7075-T6 forged aluminum, this lower provides a robust...MSRP: $603.75$525.00 -
BCM LOWER GROUP W/BCM STK MOD 0 BLK
Bravo Company
MSRP: $603.75$525.00The Bravo Company BCM Lower Group with BCM Stock Mod 0 in black is a complete lower receiver assembly designed for reliability and performance. This lower group features a semi-automatic fire control system with clearly marked SAFE and SEMI positions,...MSRP: $603.75$525.00 -
BOOTLEG AMBI RECEIVER SET AR 15 BLK
Bootleg
MSRP: $574.94$460.00The Bootleg Ambi Receiver Set for AR-15 rifles offers a precision-crafted solution for enthusiasts seeking enhanced functionality and durability. Manufactured by Bootleg from high-quality 7075 billet aluminum, this receiver set features a MIL-SPEC hard...MSRP: $574.94$460.00 -
AM DEF UIC STRPPD LOWER RECEIVER BLK
American Defense Mfg.
MSRP: $498.75$399.00The American Defense Mfg. UIC Stripped Lower Receiver is crafted from durable 7075-T6 billet aluminum, designed to serve as a reliable foundation for AR-15 builds. This lower receiver features a Type III hardcoat anodized finish infused with Teflon,...MSRP: $498.75$399.00 -
AERO AR15 M4E1 COMPLETE LOWER BK
Aero Precision
MSRP: $368.74$295.00The Aero Precision AR15 M4E1 Complete Lower BK is a high-quality foundation for building a reliable AR15 rifle. Designed with precision machining, this complete lower receiver combines durability with functional design elements. Featuring the M4E1 lower...MSRP: $368.74$295.00 -
BCM PSTL LOWER GROUP W/RCVR EXT 556
Bravo Company
MSRP: $603.75$525.00The Bravo Company BCM PSTL LOWER GROUP W/RCVR EXT 556 is a precision-engineered lower receiver assembly designed for reliability and durability. Crafted from 7075-T6 aluminum forging, this lower group features a hardcoat anodized finish, enhancing...MSRP: $603.75$525.00 -
Out of stock
SPIKES RARE BREED CRUSADER LOWER RECEIVER STLB960PCH
SPIKES
$437.00The SPIKES Rare Breed Crusader Lower Receiver (model STLB960PCH) offers a robust foundation for firearm builds, crafted by the reputable SPIKES brand. Manufactured from durable 7075-T6 forged aluminum, this stripped lower receiver features a black hard...$437.00 -
Out of stock
SPIKES RARE BREED SAMURAI LOWER RECEIVER STLB630
SPIKES
$329.00The SPIKES Rare Breed Samurai Lower Receiver STLB630 is a precision-engineered component designed for firearm enthusiasts seeking durability and functionality. Crafted by Rare Breed Firearms and exclusively distributed by Spikes Tactical, this lower...$329.00 -
Out of stock
RISE ARMAMENT ADVANCED PERFORMANCE RABLR223535
Rise Armament
$430.00The Rise Armament Advanced Performance RABLR223535 trigger is designed to enhance the shooting experience by providing a crisp and consistent trigger pull. Renowned for its precision and reliability, this single-stage trigger group offers improved...$430.00 -
Out of stock
BATTLE ARMS DEVELOPMENT XIPHOS LOWER RECEIVER XIPHOS-SET
Battle Arms Development
$539.00The Battle Arms Development Xiphos Lower Receiver (model XIPHOSET) is engineered for reliability and precision. Crafted with high-quality materials, this lower receiver provides a durable foundation for building or upgrading your firearm. Designed by...$539.00