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
FORTIS LICENSE GEN II AR15 SET STD
Fortis Manufacturing Inc.
MSRP: $498.69$399.00The Fortis License Gen II AR15 Set STD by Fortis Manufacturing Inc. is a precision-engineered lower and upper receiver set crafted from durable 7075 T6 billet aluminum. This Gen II model builds upon the original design, incorporating integrated carbon...MSRP: $498.69$399.00 -
Out of stock
BCM LOWER GROUP W/MILSPEC M4 STOCK
Bravo Company
MSRP: $493.75$395.00The Bravo Company BCM Lower Group with Mil-Spec M4 Stock is a complete lower receiver assembly designed for reliability and durability. Featuring an enhanced trigger guard and a quick-detach end plate, this lower group is built to provide practical...MSRP: $493.75$395.00 -
Out of stock
BAD WORKHORSE COMPLETE LOWR B5 STOCK
Battle Arms Development
MSRP: $462.49$370.00The BAD WORKHORSE COMPLETE LOWR B5 STOCK by Battle Arms Development is a fully assembled rifle lower receiver designed for seamless integration with your rifle upper. Engineered for reliability and precision, this complete lower features an anodized...MSRP: $462.49$370.00 -
Out of stock
AERO M4E1 PRO COMP LOWER CARBINE BRN
Aero Precision
MSRP: $599.99$480.00The Aero Precision M4E1 PRO COMP Lower Carbine in Kodiak Brown offers a robust and reliable foundation for building a versatile AR-15 platform. Crafted with precision machining, this complete lower receiver features an anodized finish for enhanced...MSRP: $599.99$480.00 -
Out of stock
AERO M4E1 PRO COMP LOWER CARBINE ODG
Aero Precision
MSRP: $599.99$480.00The Aero Precision M4E1 Pro Comp Lower Carbine in Olive Drab Green offers a robust foundation for building a reliable AR-style rifle. This complete lower receiver is designed with precision machining and an anodized finish to ensure durability and a...MSRP: $599.99$480.00 -
Out of stock
AERO M4E1 PRO COMP LOWER CARBINE BLK
Aero Precision
MSRP: $599.99$480.00The Aero Precision M4E1 PRO Comp Lower Carbine in black offers a robust and versatile foundation for your AR build. Engineered with precision, this lower receiver features ambidextrous controls, including the bolt catch, magazine release, and safety...MSRP: $599.99$480.00 -
Out of stock
AERO M5 AR10 CMPLTE LWR W/MOE BLK
Aero Precision
MSRP: $581.24$465.00The Aero Precision M5 AR10 Complete Lower with MOE Black offers a robust foundation for your AR10 platform build. Crafted by Aero Precision, this complete lower receiver combines durable construction with premium components to ensure reliable performance...MSRP: $581.24$465.00 -
Out of stock
AERO AR9 COMPLETE LOWER 9/40 BLK
Aero Precision
MSRP: $449.99$360.00The Aero Precision AR9 Complete Lower 9/40 in black offers a reliable foundation for building a custom AR-style pistol or rifle chambered in 9mm or .40 caliber. Crafted by Aero Precision, a respected name in firearm components, this complete lower...MSRP: $449.99$360.00 -
Out of stock
AERO M5 AR10 COMPLETE LOWER BLK
Aero Precision
MSRP: $493.74$395.00The Aero Precision M5 AR10 Complete Lower in black is a robust foundation for building a precision AR10-style rifle. Designed by Aero Precision, this complete lower receiver assembly offers a high-quality, anodized finish that enhances durability and...MSRP: $493.74$395.00 -
Out of stock
AERO AR15 ENHANCED COMPLETE LWR STR
Aero Precision
MSRP: $462.49$370.00The Aero Precision AR15 Enhanced Complete Lower Receiver offers a robust foundation for building a reliable and customizable AR15 platform. Engineered with precision, this complete lower features the M4E1 lower receiver design, known for its durable...MSRP: $462.49$370.00 -
Out of stock
AERO AR15 ENHANCED COMPLETE LOWER BK
Aero Precision
MSRP: $481.24$385.00The Aero Precision AR15 Enhanced Complete Lower BK is a fully assembled lower receiver designed to serve as a reliable foundation for your AR15 build. Crafted with precision, this model features an anodized black finish that offers durability and...MSRP: $481.24$385.00