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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Out of stock
AERO AR15 ASSEMBLED UPPER FDE
Aero Precision
MSRP: $160.00$145.00Manufacturing a great receiver isn't just about what the end product looks like. It's about what it feels like, how it works, how it handles and performs. Aero Precision products have been recognized across the country by members of the military and law...MSRP: $160.00$145.00 -
Out of stock
AERO M5 AR10 ASSEMBLED UPPER FDE
Aero Precision
MSRP: $235.00$210.00The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big...MSRP: $235.00$210.00 -
Out of stock
RRA CMPLT CAR A4 UPR 350LGD 16 10RD
Rock River Arms
MSRP: $740.00$685.00Rock River Arms A4 Carbine upper comes chambered in .350 Legend with a 16" chrome moly 1/16 twist barrel. Additionally this upper includes a RRA 13" M-Lok compatible lightweight free float rail and a RRA Operator Brake (1/2-36 thread). This is a complete...MSRP: $740.00$685.00 -
Out of stock
RISE CMPLT UPPR 6MM ARC 18 BLACK
Rise Armament
MSRP: $1,199.00$999.00The RISE 6mm ARC AR-15 Upper Receivers features an exceptionally accurate 18-inch 416R stainless steel threaded barrel.MANUFACTURER: Rise ArmamentMPN: RA-6ARC-CU-BLK-18MODEL: 0Type of Barrel: 01:07:00Barrel Length: 18"Description: M-LOKFinish:...MSRP: $1,199.00$999.00 -
RADICAL UPPR 6.5GRNDL 16 1-9 MLOK
Radical Firearms
MSRP: $669.95$0.00The Radical Firearms 6.5 Grendel upper is perfect for the novice or advanced shooter wanting to finish out that build and hit the range. No matter what your style of shooting is, Radical Firearms has you covered.MANUFACTURER: Radical FirearmsMPN:...MSRP: $669.95$0.00Qty in Cart: 0Quantity:Price:MSRP: $669.95$0.00Subtotal: -
Out of stock
RADICAL UPPR 556 16 1-7 MLOK BLK
Radical Firearms
MSRP: $474.95$309.00The Radical Firearms 5.56mm upper is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that build and hit the range. No matter what your style of shooting is, Radical...MSRP: $474.95$309.00 -
Out of stock
RADICAL UPPR 300BLK 16 1-8 MLOK BLK
Radical Firearms
MSRP: $474.95$309.00The Radical Firearms 300 Blackout upper is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that build and hit the range. No matter what your style of shooting is,...MSRP: $474.95$309.00 -
RADIAN UPPER 16 223 WYLDE BROWN
Radian Weapons
MSRP: $2,029.95$0.00The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...MSRP: $2,029.95$0.00Qty in Cart: 0Quantity:Price:MSRP: $2,029.95$0.00Subtotal: -
Out of stock
RADIAN UPPER 14.5 223 WYLDE ODG
Radian Weapons
$1,995.00The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...$1,995.00 -
RADIAN UPPER 14.5 223 WYLDE BROWN
Radian Weapons
MSRP: $1,994.95$0.00The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...MSRP: $1,994.95$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,994.95$0.00Subtotal: -
Out of stock
PWS MK116 MOD 1-M UPPER 16.1 BLK
Primary Weapons Systems
MSRP: $1,129.95$1,050.00The MK1 MOD 1-M line features the PWS long stroke piston system. Internally, this line offers the tried and true system that PWS owners have grown to know and love. Featuring a free-float MLOK handguard, forward assist controls, and a more true to...MSRP: $1,129.95$1,050.00 -
Out of stock
PWS MK116 MOD 2-M UPPER 16.1 BLK
Primary Weapons Systems
MSRP: $1,399.95$1,300.00The PWS MK1 MOD 2-M line features the PWS long stroke piston system. While the internals remain the same as other PWS lines, the MK1 MOD 2-M offers a variety of features exclusive to this line. Starting with patent pending PicLok technology on the free...MSRP: $1,399.95$1,300.00