AR15 Parts
Gas & Brass Armory is your trusted source for AR-15 parts in Brandon, FL. Whether you're upgrading your current rifle or building a custom AR from the ground up, we stock high-quality components from top manufacturers like Aero Precision, Magpul, Radian Weapons, BCM, Geissele, and more. Shop complete uppers, stripped lowers, triggers, handguards, buffer kits, barrels, and everything you need for your next AR build. Our expert staff is here to help you build it right the first time.
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SOLGW M4-EXO3 13.7 5.56 URG
Sons of Liberty Gun Works
MSRP: $850.00$808.00The SOLGW M4-EXO3 13.7 5.56 URG from Sons of Liberty Gun Works is a precision-engineered upper receiver designed to enhance your rifle's performance. Featuring a 13.7-inch barrel optimized for 5.56 NATO, this upper is built with quality Mil-Spec or...MSRP: $850.00$808.00 -
SOLGW PATROL SL 16 5.56 FSB URG
Sons of Liberty Gun Works
MSRP: $700.00$665.00The SOLGW PATROL SL 16 5.56 FSB URG upper receiver by Sons of Liberty Gun Works combines precision engineering with durable materials to enhance your firearm's performance. Featuring a 16-inch 5.56 NATO barrel with a QPQ finish, this upper is designed...MSRP: $700.00$665.00 -
SOLGW E INDIA KIT V2 5.56 16 BLK
Sons of Liberty Gun Works
MSRP: $500.00$475.00The SOLGW E INDIA KIT V2 5.56 16 BLK from Sons of Liberty Gun Works is a precision-engineered upper assembly designed to streamline your rifle build. Featuring a 16-inch barrel with a mid-length gas system, this upper is constructed with high-quality...MSRP: $500.00$475.00 -
SOLGW E INDIA KIT V2 5.56 13.7 BLK
Sons of Liberty Gun Works
MSRP: $500.00$475.00The SOLGW E INDIA KIT V2 5.56 13.7 BLK by Sons of Liberty Gun Works is designed to provide a reliable and efficient upper assembly solution for AR-style builds. Featuring a 13.7-inch barrel with a mid-length gas system, this upper unit offers a balanced...MSRP: $500.00$475.00 -
SOLGW L89 BS V2 5.56 13.7 HUX BLK
Sons of Liberty Gun Works
MSRP: $1,375.00$1,307.00The SOLGW L89 BS V2 5.56 13.7 HUX BLK, crafted by Sons of Liberty Gun Works, is a precision-engineered upper receiver designed to enhance your firearm's performance. Featuring the robust Broadsword 89 design, this upper includes a 13.7-inch 4150CMV...MSRP: $1,375.00$1,307.00 -
SOLGW L89 BS V2 5.56 13.7 NOX BLK
Sons of Liberty Gun Works
MSRP: $1,375.00$1,307.00The SOLGW L89 BS V2 5.56 13.7 NOX BLK upper receiver from Sons of Liberty Gun Works offers a robust and precision-engineered solution for AR-style rifles. Featuring a 13.7-inch barrel constructed from 4150 CMV steel, this upper is designed to provide...MSRP: $1,375.00$1,307.00 -
RRA CMPLT MID A4 UPR 450BM 16 5RD
Rock River Arms
MSRP: $750.00$699.00The Rock River Arms CMPLT MID A4 UPR 450BM 16 5RD is a complete upper receiver assembly designed for AR-15 platforms. Featuring a 16-inch chrome moly barrel with a 1:24 twist rate, this upper is chambered in .450 Bushmaster, providing robust performance...MSRP: $750.00$699.00 -
RRA CMPTL RRAGE 3G UPR 5.56NATO 16
Rock River Arms
MSRP: $540.00$500.00The Rock River Arms CMPTL RRAGE 3G Upper is a precision-engineered component designed for AR-15 platform rifles. Featuring a durable extruded aluminum upper receiver with an anodized finish, this upper is built to provide reliable performance and...MSRP: $540.00$500.00 -
RRA CMPLT CAR A4 UPR 458 SOCOM 16
Rock River Arms
MSRP: $790.00$733.00The Rock River Arms RRA CMPLT CAR A4 UPR 458 SOCOM 16 is a precision-engineered complete upper receiver designed for AR-15 platforms. Featuring a 16-inch chrome moly bull barrel with a 1:14 twist rate, this upper is chambered in .458 SOCOM, offering...MSRP: $790.00$733.00 -
RRA CMP COYOTE CAR A4 UPR 300BLK 16
Rock River Arms
MSRP: $820.00$760.00The Rock River Arms CMP Coyote Carbine A4 Upper in 300 Blackout caliber features a robust 16-inch chrome moly steel barrel with a 1:8 twist rate, designed to offer reliable performance and accuracy. This complete upper assembly includes a lightweight,...MSRP: $820.00$760.00 -
RISE CMPLT UPPR 6MM ARC 18 PAT BRN
Rise Armament
MSRP: $1,199.00$999.00The Rise Armament RISE CMPLT UPPR 6MM ARC 18 PAT BRN is a precision-engineered upper receiver designed for optimal performance with 6mm ARC caliber cartridges. Featuring an 18-inch stainless steel barrel crafted from 416R steel, this upper offers...MSRP: $1,199.00$999.00 -
RISE CMPLT UPPR 6MM ARC 18 BLACK
Rise Armament
MSRP: $1,199.00$999.00The Rise Armament RISE CMPLT UPPR 6MM ARC 18 BLACK is a high-performance upper receiver designed for the 6mm ARC platform. Featuring an 18-inch barrel crafted from durable 416R stainless steel, this upper ensures consistent accuracy and reliability. The...MSRP: $1,199.00$999.00