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 L89 V2 5.56 11.5 A2 BLK
Sons of Liberty Gun Works
MSRP: $983.25$855.00These L89 Upper Receiver Groups are built using SOLGW forged upper, V2 Button rifled barrels, their V2 4140 gas block, and offered in a variety of length and muzzle device options. BCH and Charging Handles are not included.MANUFACTURER: Sons of Liberty...MSRP: $983.25$855.00 -
SOLGW PREC V2 BBL 223 WYLDE 14.5
Sons of Liberty Gun Works
MSRP: $385.94$309.00The V2 barrels from SOLGW are optimized for balanced use, even with forward mounted enablers, and resist zero shift as a suppressor is added or removed.MANUFACTURER: Sons of Liberty Gun WorksMPN: 14.5PRECISION-SPR-223MODEL: PrecisionType of Barrel:...MSRP: $385.94$309.00 -
SEEKINS BBL 10.5 223WYLDE BLK
Seekins Precision
MSRP: $493.75$395.00Seekins Precision barrels live up to the company's name. Precision CNC machined to match grade specifications from the best quality 416 stainless steel blanks available, each barrel is inspected no less than four times to guarantee maximum accuracy and...MSRP: $493.75$395.00 -
ROSCO K9 13.95 556NATO SAUCE PACK
Rosco Manufacturing
MSRP: $406.14$325.00The Rosco Sauce Pack bundles were created after direct requests from Rosco's customers to provide them with the key components needed for their carbine/pistol builds at a great combined price. The result is a hand-picked list of parts that will produce...MSRP: $406.14$325.00 -
ROSCO 11.5 K9 BARREL PATROL LENGTH
Rosco Manufacturing
MSRP: $215.75$155.00The K9 11.5 offers a proprietary patrol length gas system that is smoother than carbine length, more reliable than mid-length. Features an optimized gas port to run reliably suppressed and/or unsuppressed. The K9 continuous taper is the most effective...MSRP: $215.75$155.00 -
ROSCO 13.95 K9 BARREL MID LENGTH
Rosco Manufacturing
MSRP: $222.78$160.00The K9 13.95 features a mid-length gas system with an optimized gas port to run reliably suppressed and/or unsuppressed. The K9 continuous taper is the most effective profile to dissipate heat from hard use. With weight shifted to the back of the barrel,...MSRP: $222.78$160.00 -
ROSCO K9 SAGE DYN BBL 12.5 5.56 1/7
Rosco Manufacturing
MSRP: $239.40$171.00The K9 12.5 offers a proprietary patrol length gas system that is smoother than a carbine length, and more reliable than a mid-length. Because this is the optimal amount of gas, the barrel runs reliable suppressed and/or unsuppressed. The K9 continuous...MSRP: $239.40$171.00 -
ROSCO PB 14.5 223WYLDE SAUCE PACK
Rosco Manufacturing
MSRP: $427.78$343.00The Rosco Sauce Pack bundles were created after direct requests from Rosco's customers to provide them with the key components needed for their carbine/pistol builds at a great combined price. The result is a hand-picked list of parts that will produce...MSRP: $427.78$343.00 -
ROSCO BL 8.2 300BLK SAUCE PACK
Rosco Manufacturing
MSRP: $390.28$313.00The Rosco Sauce Pack bundles were created after direct requests from Rosco's customers to provide them with the key components needed for their carbine/pistol builds at a great combined price. The result is a hand-picked list of parts that will produce...MSRP: $390.28$313.00 -
ROSCO BL 14.5 556NATO SAUCE PACK
Rosco Manufacturing
MSRP: $391.45$314.00The Rosco Sauce Pack bundles were created after direct requests from Rosco's customers to provide them with the key components needed for their carbine/pistol builds at a great combined price. The result is a hand-picked list of parts that will produce...MSRP: $391.45$314.00 -
ROSCO BL BBL SAUCE PACK 10.5 5.56
Rosco Manufacturing
MSRP: $332.95$292.00High quality components and precise manufacturing makes Rosco Products ideal for both new shooters and experienced gun owners. The durability, reliability and excellent build quality will provide years of service you can count on.MANUFACTURER: Rosco...MSRP: $332.95$292.00 -
ROSCO PB BBL 8.2 300BLK
Rosco Manufacturing
MSRP: $213.01$157.00This Rosco Purebred 8.2" 300 Blackout Barrel was designed for SBR/ Pistol use in conjunction with suppressors. This is the shortest that they will go to allow you the flexibility of a shorter Personal Defense Weapon (PDW) without sacrificing performance...MSRP: $213.01$157.00