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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BALLISTIC ADVANTAGE AR 15 LOWER RCVR
Ballistic Advantage
MSRP: $167.99$120.00The Ballistic Advantage AR15 Lower Receiver is the perfect base for your next build. This high quality, mil-spec lower receiver is machined from 7075-T6 forged aluminum with a hard-coat anodized finish. It features a nylon tipped upper tension screw,...MSRP: $167.99$120.00 -
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 -
AERO M4E1 PRO STRIPPED LOWER BLK
Aero Precision
MSRP: $337.49$270.00The 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$270.00 -
AERO M4E1 STRIPPED LOWER KODIAK BRN
Aero Precision
MSRP: $195.99$140.00The 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$140.00 -
AERO M4E1 STRIPPED LOWER ODG
Aero Precision
MSRP: $195.99$140.00The 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$140.00 -
AERO M5 AR10 STRIPPED LWR ODG
Aero Precision
MSRP: $202.99$145.00The 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$145.00 -
AERO AR15 M4E1 COMPLETE LOWER BK
Aero Precision
MSRP: $368.74$295.00The M4E1 Complete Lower Receiver is the perfect base for your custom AR15 build. This complete lower features our new M4E1 Lower Receiver with an A2 Grip.MANUFACTURER: Aero PrecisionMPN: APAR600112MODEL: M4E1Action: Semi-automaticFinish: AnodizedCaliber:...MSRP: $368.74$295.00 -
AERO M4A1 CLONE STRIPPED LWR
Aero Precision
MSRP: $181.99$130.00The M4A1 Clone Lower Receiver features custom engraving on the AR15 Gen 2 Lower Receiver and is the perfect base for your M4A1 clone build.MANUFACTURER: Aero PrecisionMPN: APAR148018CMODEL: LowerAction: Semi-automaticDescription: M4A1 Clone LowerFinish:...MSRP: $181.99$130.00 -
AERO M16A4 CLONE STRIPPED LWR
Aero Precision
MSRP: $181.99$130.00The M16A4 Clone Lower Receiver features custom engraving on the AR15 Gen 2 Lower Receiver and is the perfect base for your M16A4 clone build. These lowers do not have engraving on the right side of the magwell.MANUFACTURER: Aero PrecisionMPN:...MSRP: $181.99$130.00 -
AERO M4E1 STRIPPED LOWER FDE
Aero Precision
MSRP: $223.99$160.00The 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: $223.99$160.00 -
AERO M4E1 STRIPPED LOWER BLACK
Aero Precision
MSRP: $195.99$140.00The 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$140.00 -
AERO M5 AR10 STRIPPED LWR FDE
Aero Precision
MSRP: $287.49$230.00The 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: APAR308005CMODEL: M5Action:...MSRP: $287.49$230.00