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
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: -
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
LUTH AR 16 LTWT BBL COMP UPPER 223
Luth-AR
MSRP: $439.95$414.00The Luth-AR 16" Lightweight Complete Upper Barrel Assembly Starts with a 16", 223 Remington Lightweight barrel made from 4140 Chrome Molly with a 1-9" twist mated to a A3 Flattop receiver which includes a bolt carrier, charging handle, forward assist and...MSRP: $439.95$414.00 -
Out of stock
LUTH AR 24 BULL BBL COMP UPPER 223
Luth-AR
MSRP: $514.95$485.00The Luth-AR 24" Fluted Bull Barrel Complete Upper Barrel Assembly Starts with a 24", .223 caliber fluted bull barrel made from 416 SST with a 1-9" twist mated to a A3 Flattop receiver which includes a bolt carrier, charging handle, forward assist and...MSRP: $514.95$485.00 -
LANTAC RECON UPPER 300 BO 16
LanTac USA LLC
MSRP: $1,322.99$0.00The LA-SF15 RECON URG (Upper Receiver Group) is built to the highest quality standards and assembled by a skilled team of armorers. Each URG undergoes a shot test at Lantac's facility and includes a lifetime warranty against defects. The LA-SF15 URG...MSRP: $1,322.99$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,322.99$0.00Subtotal: -
FIGHT RAPTOR UPR 556 MLOK 16.25
FightLite
MSRP: $4,999.99$0.00The innovative RAPTOR belt-fed upper receiver assembly is designed to interchange with standard AR/M4 type uppers and readily fits any MIL-Spec lower receiver without permanent modification to the host lower, and is rearward compatible to AR15/M16 models...MSRP: $4,999.99$0.00Qty in Cart: 0Quantity:Price:MSRP: $4,999.99$0.00Subtotal: -
Out of stock
FAXON ION ULTRALT 16 556NATO UPPER
Faxon Firearms
MSRP: $1,099.00$948.00The FX5500-U features Faxon's 14.5" Pencil Barrel with Integral Slim 3-Port Muzzle Brake which meets the NFA 16" minimum barrel length requirement, 13" Streamline Carbon Fiber Handguard, and Lightweight Bolt Carrier Group. Super light, easy shooting and...MSRP: $1,099.00$948.00 -
Out of stock
FAXON ARAK-21 556NATO 16 UPPER
Faxon Firearms
MSRP: $999.00$920.00The ARAK-21 is a gas piston actuated, complete upper receiver assembly designed to seamlessly interface with the standard AR-15 platform. The total extent of the interface is simply the take down pin, and the pivot pin. The new ARAK-21 upper receiver...MSRP: $999.00$920.00 -
Out of stock
CHIAPPA M4-22 G2 UPPR 22LR 16 28RD
Chiappa Firearms
MSRP: $368.89$297.00Chiappa Firearms is the Italian group specialized in the production of firearms and today one of the most important world leaders in the sector.MANUFACTURER: Chiappa FirearmsMPN: 500.095MODEL: M4-22 G2Barrel Length: 16"Capacity: 28 RoundsFit: AR...MSRP: $368.89$297.00 -
BAD 16 UPPR WRKHORSE 556 AMBI C GRAY
Battle Arms Development
MSRP: $745.48$0.00The WORKHORSE complete upper receiver is purpose-built around the forged WORKHORSE 7075-T6 aircraft-grade aluminum receiver and free-float rail handguard with M-LOK attachment point at 3, 6, and 9 o'clock positions. At 12 o'clock is a full-length...MSRP: $745.48$0.00Qty in Cart: 0Quantity:Price:MSRP: $745.48$0.00Subtotal: