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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GE SUPER DTY MOD1 5.56 13.9 URG DDC
Geissele Automatics
$1,439.00The Geissele Automatics GE SUPER DTY MOD1 5.56 13.9 URG DDC is a precision-engineered upper receiver designed for the AR-15 platform. Featuring a 13.9-inch barrel with a pinned configuration, this upper maintains a compact overall length of 16 inches,...$1,439.00 -
GE SUPER DTY MOD1 5.56 14.5 URG DDC
Geissele Automatics
$1,439.00The Geissele Automatics GE SUPER DTY MOD1 5.56 14.5 URG DDC is a precision-engineered complete upper designed for the AR-15 platform. Featuring a 14.5-inch barrel pinned to meet a 16-inch overall length, this upper combines durable construction with...$1,439.00 -
GE SUPER DUTY MOD1 5.56 16 URG DDC
Geissele Automatics
$1,439.00The Geissele Automatics GE SUPER DUTY MOD1 5.56 16 URG DDC is a precision-engineered upper receiver designed for the AR-15 platform. Featuring a 16-inch barrel with a 1:7 twist rate, this upper is optimized for consistent accuracy and reliable...$1,439.00 -
FIGHT MCR MIL DF UPR 556 PIC 16.25
FightLite
MSRP: $6,999.99$6,600.00The FightLite FIGHT MCR MIL DF UPR 556 PIC 16.25 is a versatile upper receiver assembly engineered for seamless integration with standard AR/M4 type lowers. Designed for compatibility with MIL-Spec lowers, this upper does not require permanent...MSRP: $6,999.99$6,600.00 -
FIGHT MCR DUAL FD UPR 556 MLOK 16.25
FightLite
MSRP: $6,399.99$5,900.00The FightLite FIGHT MCR DUAL FD UPR 556 MLOK 16.25 is a versatile upper receiver designed to enhance the functionality of compatible AR-style rifles. Featuring a 16.25-inch quick-change barrel, this upper allows for rapid configuration changes without...MSRP: $6,399.99$5,900.00 -
FAXON ION ULTRALT 16 556NATO UPPER
Faxon Firearms
MSRP: $1,099.00$1,012.00The Faxon Firearms ION ULTRALT 16 556NATO Upper offers a high-performance solution for AR-15 enthusiasts seeking a balance of durability and lightweight design. This upper assembly features a 16-inch barrel optimized for the 5.56 NATO caliber, providing...MSRP: $1,099.00$1,012.00 -
DD M4V7 UPPER 556 16 MLOK BLK
Daniel Defense
MSRP: $1,300.00$1,208.00The Daniel Defense DD M4V7 Upper 556 16 MLOK BLK is engineered for reliable performance and versatility. Featuring a 16-inch cold hammer forged barrel with a government profile, this upper receiver group is designed to offer consistent accuracy and...MSRP: $1,300.00$1,208.00 -
COLT EPR UPPER 5.56 16 MLOK BLK
Colt
MSRP: $1,049.00$994.00The Colt EPR Upper 5.56 16 MLOK in black is engineered to deliver dependable performance and durability. Featuring a 16-inch barrel, this upper receiver is designed to integrate seamlessly with compatible platforms, providing a reliable foundation for...MSRP: $1,049.00$994.00 -
CMMG UPPR RSLT MK4 6MM ARC 16.1 BLK
CMMG
MSRP: $899.95$756.00The CMMG UPPR RSLT MK4 6MM ARC 16.1 BLK is a precision-engineered upper receiver designed to enhance the capabilities of your AR-15 platform. Built by CMMG, this upper features a 16.1-inch barrel finished in durable black Cerakote, providing corrosion...MSRP: $899.95$756.00 -
CMMG UPPR RSLT MK4 350LEG 16.1 BLK
CMMG
MSRP: $899.95$756.00The CMMG UPPR RSLT MK4 350LEG 16.1 BLK is a high-quality upper designed to deliver reliable performance and precision. Manufactured by CMMG, this upper features a 16.1-inch barrel finished in durable black Cerakote, providing enhanced resistance to wear...MSRP: $899.95$756.00 -
BLACK RAIN UPPER 458SOCOM 16 BLK
Black Rain Ordnance
MSRP: $999.00$919.00The Black Rain Upper 458SOCOM 16 BLK from Black Rain Ordnance is a precision-engineered upper receiver designed for the 458 SOCOM caliber. Featuring a 16-inch forged barrel with a 1:14 twist rate, this upper is crafted to deliver consistent performance...MSRP: $999.00$919.00 -
BAD 16 UPPR WRKHORSE 556 AMBI BLK
Battle Arms Development
MSRP: $692.98$660.00The Battle Arms Development BAD 16 UPPR WRKHORSE 556 AMBI BLK is a high-quality upper receiver assembly designed for AR-15 platforms. Crafted from forged 7075-T6 aircraft-grade aluminum, this upper features a robust free-float handguard equipped with...MSRP: $692.98$660.00