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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Out of stock
BAD WORKHORSE COMPLETE LOWR B5 STOCK
Battle Arms Development
MSRP: $462.49$369.99This complete WORKHORSE Rifle Lower with B5 Systems Bravo Stock is fully assembled and ready for your rifle upper.MANUFACTURER: Battle Arms DevelopmentMPN: WH-LR-R-B5MODEL: WorkhorseAction: Semi-automaticFinish: AnodizedCaliber: MultiType: Complete Lower...MSRP: $462.49$369.99 -
Out of stock
ATI AR-15 MULTI CAL RECEIVER BLK
American Tactical
MSRP: $67.51$48.22Machined from 7075-T6 aircraft grade billet aluminum, this stripped lower is ready for your next custom AR15 build.MANUFACTURER: American TacticalMPN: ATIGLOWMSMODEL: MilsportAction: Semi-automaticCaliber: 223 RemingtonType: Stripped Lower ReceiverColor:...MSRP: $67.51$48.22 -
AM DEF UIC STRPPD LOWER RECEIVER BLK
American Defense Mfg.
MSRP: $498.75$399.00The UIC billet 7075-T6 AR-15 Pattern strip lower receiver is outfitted with their proprietary Ambidextrous magazine release, Ambidextrous bolt catch/ release lever, and their dimpled take down and pivot pins. Also includes an installed milspec magazine...MSRP: $498.75$399.00 -
Out of stock
AERO M4E1 PRO COMP LOWER CARBINE BRN
Aero Precision
MSRP: $599.99$479.99The M4E1 PRO Lower Receiver seamlessly integrates ambidextrous controls into the M4E1 Lower that allows for the shooter to easily operate the bolt catch, magazine release, and safety without modifying their dominant firing hand.MANUFACTURER: Aero...MSRP: $599.99$479.99 -
Out of stock
AERO M4E1 PRO COMP LOWER CARBINE ODG
Aero Precision
MSRP: $599.99$479.99The M4E1 PRO Lower Receiver seamlessly integrates ambidextrous controls into the M4E1 Lower that allows for the shooter to easily operate the bolt catch, magazine release, and safety without modifying their dominant firing hand.MANUFACTURER: Aero...MSRP: $599.99$479.99 -
Out of stock
AERO M4E1 PRO COMP LOWER CARBINE BLK
Aero Precision
MSRP: $599.99$479.99The M4E1 PRO Lower Receiver seamlessly integrates ambidextrous controls into the M4E1 Lower that allows for the shooter to easily operate the bolt catch, magazine release, and safety without modifying their dominant firing hand.MANUFACTURER: Aero...MSRP: $599.99$479.99 -
Out of stock
AERO M4E1 PRO STRIPPED LOWER KOD BRN
Aero Precision
MSRP: $337.49$269.99The M4E1 PRO Lower Receiver seamlessly integrates ambidextrous controls into the M4E1 Lower that allows for the shooter to easily operate the bolt catch, magazine release, and safety without modifying their dominant firing hand. All proprietary...MSRP: $337.49$269.99 -
Out of stock
AERO M4E1 PRO STRIPPED LOWER ODG
Aero Precision
MSRP: $337.49$269.99The M4E1 PRO Lower Receiver seamlessly integrates ambidextrous controls into the M4E1 Lower that allows for the shooter to easily operate the bolt catch, magazine release, and safety without modifying their dominant firing hand. All proprietary...MSRP: $337.49$269.99 -
Out of stock
AERO M5 AR10 CMPLTE LWR W/MOE BLK
Aero Precision
MSRP: $581.24$464.99The Aero Precision AR15 Complete Lower Receiver is the perfect base for your custom AR15 build. This complete lower features AR15 Gen 2 Lower and is upgraded to include a MOE SL Grip and MOE SL Carbine Stock. Save when you buy it complete and let their...MSRP: $581.24$464.99 -
Out of stock
AERO M5 AR10 STRIPPED LWR KODIAK BRN
Aero Precision
MSRP: $202.99$144.99The M5 .308 Stripped Lower Receiver helps you build a big-bore AR from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface.MANUFACTURER: Aero PrecisionMPN: APAR308065CMODEL: M5Action:...MSRP: $202.99$144.99 -
AERO M4E1 STRIPPED LOWER ODG
Aero Precision
MSRP: $195.99$139.99The M4E1 Lower Receiver delivers billet aesthetics in a forged package. This custom-designed enhanced forging is machined from 7075-T6 Aluminum and compatible with all mil-spec AR15 parts. Aside from the visual upgrades, this custom-engineered design...MSRP: $195.99$139.99 -
Out of stock
AERO M5 AR10 STRIPPED LWR ODG
Aero Precision
MSRP: $202.99$144.99The M5 .308 Stripped Lower Receiver helps you build a big-bore AR from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface.MANUFACTURER: Aero PrecisionMPN: APAR308181CMODEL: M5Action:...MSRP: $202.99$144.99