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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FN BBL M16 BB 16 MID LENGTH 556
FN America
MSRP: $348.75$279.00FN AR15 premium button rifled barrels are manufactured using U.S. sourced Chrome Moly Venadium material per Mil-B-11595E. Each barrel is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) to ensure that it is free of microstresses or flaws,...MSRP: $348.75$279.00 -
FN BBL M16 BB 10.5 CARB LENGTH 556
FN America
MSRP: $348.75$279.00FN AR15 premium button rifled barrels are manufactured using U.S. sourced Chrome Moly Venadium material per Mil-B-11595E. Each barrel is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) to ensure that it is free of microstresses or...MSRP: $348.75$279.00 -
DD BBL ASSY 5.56 1-7 16 M4 CAR
Daniel Defense
MSRP: $422.50$338.00High quality components and precise manufacturing make Daniel Defense parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.MANUFACTURER:...MSRP: $422.50$338.00 -
DBB BBL 5.56NATO 16 MID MED 1/8 BLK
Diamondback Firearms
MSRP: $120.40$95.00At Diamondback, they are able to produce barrels that meet the shooters requirements. Their barrel blanks are made from premium materials and machined using some of the finest equipment on the market. Diamondback has several high-quality CNC machines...MSRP: $120.40$95.00 -
DBB BBL 556 16 CARB MED 1/9 BLK
Diamondback Barrels
MSRP: $120.40$95.00Diamondback Firearms began in 1989 with a desire to create products without compromise. Since then Diamondback has developed some of the most efficient AR15 and concealed carry pistol platforms available.MANUFACTURER: Diamondback BarrelsMPN:...MSRP: $120.40$95.00 -
CMMG BBL AND BCG KIT 16.1 5.7X28MM
CMMG
MSRP: $537.56$445.00The 16.1" 5.7x28mm Barrel and BCG Kit is perfect for building an AR pistol or SBR in 5.7x28mm using CMMG's patented Radial Delayed Blowback operating system. Unlike typical direct blowback systems, Radial Delayed Blowback not only reduces the weight in...MSRP: $537.56$445.00 -
CMMG BARREL 16.1 350 LEGEND SBN
CMMG
MSRP: $219.56$172.00Perfect for building your custom Mk4 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced. Made of 4140CM with a SBN Finish.MANUFACTURER: CMMGMPN: 35D5F0AMODEL: 0Type of Barrel: 01:16:00Barrel...MSRP: $219.56$172.00 -
CMMG BBL 300BLK 16.1 MR 4140CM SBN
CMMG
MSRP: $219.56$191.00Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced.MANUFACTURER: CMMGMPN: 30DF80AMODEL: 0Type of Barrel: 01:07:00Barrel Length: 16.1"Description:...MSRP: $219.56$191.00 -
CMMG BBL 300BLK 16.1 MT 4140CM SBN
CMMG
MSRP: $219.56$191.00Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced.MANUFACTURER: CMMGMPN: 30D120AMODEL: 0Type of Barrel: 01:07:00Barrel Length: 16.1"Description:...MSRP: $219.56$191.00 -
BAD BATTLEARMS LTWHT 5.25 9MM BRRL
Battle Arms Development
MSRP: $139.99$108.00High quality components and precise manufacturing make Battle Arms Development parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on...MSRP: $139.99$108.00 -
BALLISTIC BBL 8.6BLK 16 HBAR CARB
Ballistic Advantage
MSRP: $314.69$252.00This 8.6 Blackout 16-inch barrel is machined from 416R Stainless Steel with a QPQ Corrosion-resistant finish. their Premium Black Series 8.6 Blackout Barrels are proof-fired and MPI-tested, ensuring the best quality and accuracy.MANUFACTURER: Ballistic...MSRP: $314.69$252.00 -
BALLISTIC BBL 6MMARC 20 RIFLE
Ballistic Advantage
MSRP: $326.56$262.00This 20" 6MM ARC barrel is machined from 416 Stainless Steel with a QPQ finish. Ballistic Advantage's Premium Black Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.MANUFACTURER: Ballistic AdvantageMPN: BABL6MM003PQMODEL:...MSRP: $326.56$262.00