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
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 -
Out of stock
NOVESKE NOVESKE9 9MM 16 COMPL UPPER
Noveske
MSRP: $1,500.00$1,281.00Ideal for the discerning shooter looking to enhance their 9mm AR platform, the Noveske N9 RECON Upper features a precision-built setup ready to deliver exceptional accuracy and performance. This upper assembly boasts a 16" 416R stainless steel barrel...MSRP: $1,500.00$1,281.00 -
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: -
Out of stock
GE SUPER DTY MOD1 5.56 13.9 URG BLK
Geissele Automatics
$1,286.00Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15...$1,286.00 -
Out of stock
GE SUPER DTY MOD1 5.56 14.5 URG BLK
Geissele Automatics
$1,286.00Manufactured with confidence and without compromise, the Super Duty MOD1 adds value to the platform while continuing the reputation for excellence. All of these technologies and advancements combine to bring to market a true next-gen upper for the AR-15...$1,286.00 -
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
DD M4V7 UPPER 556 16 MLOK BLK
Daniel Defense
MSRP: $1,300.00$1,208.00The Daniel Defense M4 V7 Upper Receiver Group is built around a Cold Hammer Forged 16" Government profile barrel and equipped with a DD improved Flash Suppressor to reduce flash signature. It features a mid-length gas system for smooth, reliable cycling...MSRP: $1,300.00$1,208.00 -
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: -
BAD 16 UPPR WRKHORSE 556AMBI 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: