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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COLT EPR UPPER KIT 5.56 11.5 BLK
Colt
MSRP: $1,142.64$0.00High quality components and precise manufacturing makes Colt 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: Colt's...MSRP: $1,142.64$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,142.64$0.00Subtotal: -
CMMG BBL BCG KIT 8 9MM 4140CM SBN
CMMG
MSRP: $503.19$0.00CMMG IS A LEADING MANUFACTURER OF AR-15 RIFLES, 22LR AR-15 CONVERSION KITS AND ACCESSORIES.MANUFACTURER: CMMGMPN: 99D517AMODEL: MKGSBarrel Length: 8"Fit: AR RiflesCaliber: 9MMType: BarrelColor: BlackMSRP: $503.19$0.00Qty in Cart: 0Quantity:Price:MSRP: $503.19$0.00Subtotal: -
Out of stock
CMMG BBL BCG KIT 5 9MM 4140CM SBN
CMMG
MSRP: $476.69$358.00The CMMG 5" 9MM MkGs Barrel and BCG Kit allow you to build a Pistol Caliber Carbine using their patent-pending Radial Delayed Blowback System. Unlike typical direct blowback systems, their RDB uses a bolt that rotates and unlocks, slowing the BCG. This...MSRP: $476.69$358.00 -
CMMG UPPR DSNT 5.7X28MM 6.5 CG
CMMG
MSRP: $1,169.54$0.00The 5.7x28mm personal defense cartridge has found home with the purposefully designed 6.5" DISSENT upper group, all you need is a Mk4/mil-spec AR15 lower receiver or CMMG Mk57 lower receiver. All DISSENT uppers include a lower receiver 1913 picatinny...MSRP: $1,169.54$0.00Qty in Cart: 0Quantity:Price:MSRP: $1,169.54$0.00Subtotal: -
Out of stock
BLACK RAIN BBL 458SOCOM 10.5
Black Rain Ordnance
MSRP: $243.57$174.00High quality components and precise manufacturing makes Black Rain Ordnance 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: Black...MSRP: $243.57$174.00 -
BAD 10.5 UPPR WRKHORSE 556 AMBI GRAY
Battle Arms Development
MSRP: $816.48$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: $816.48$0.00Qty in Cart: 0Quantity:Price:MSRP: $816.48$0.00Subtotal: -
Out of stock
BALLISTIC BBL 556 11.5 CHF HNSN
Ballistic Advantage
MSRP: $356.25$285.00This 5.56 NATO chambered 11.5 inch Cold Hammer Forged barrel is machined from CrMoV steel with a manganese phosphate finish and chrome lined bore. Their limited run of Cold Hammer Forged barrels feature an M4 Feed Ramp Extension and are HP and MPI tested...MSRP: $356.25$285.00 -
Out of stock
BALLISTIC BBL 556 14.5 CHF HNSH MID
Ballistic Advantage
MSRP: $380.00$304.00This 5.56 NATO chambered 14.5 inch Cold Hammer Forged barrel is machined from CrMoV steel with a manganese phosphate finish and chrome lined bore. Their limited run of Cold Hammer Forged barrels feature an M4 Feed Ramp Extension and are HP and MPI tested...MSRP: $380.00$304.00 -
BALLISTIC BBL 6.5GREN 12.5 SS
Ballistic Advantage
MSRP: $279.06$0.00This 6.5 Grendel Type 2 chambered 12.5" inch barrel is machined from 416R Stainless Steel with a bead blasted finish. The Premium Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.MANUFACTURER: Ballistic AdvantageMPN:...MSRP: $279.06$0.00Qty in Cart: 0Quantity:Price:MSRP: $279.06$0.00Subtotal: -
Out of stock
BALLISTIC BBL 300BLK 10.3 PREMIUM
Ballistic Advantage
MSRP: $273.13$219.00This .300 Blackout chambered 10.3 inch barrel is machined from 416 Stainless Steel with a bead blasted finish. Ballistic Advantage's Premium Series Barrels feature a Nickel Boron Coated M4 Feed Ramp Extension and are HP and MPI tested.MANUFACTURER:...MSRP: $273.13$219.00 -
Out of stock
BALLISTIC BBL 300BLK 8.3 PREMIUM
Ballistic Advantage
MSRP: $261.25$209.00This .300 Blackout chambered 10.3 inch barrel is machined from 416 Stainless Steel with a bead blasted finish. Ballistic Advantage's Premium Series Barrels feature a Nickel Boron Coated M4 Feed Ramp Extension and are HP and MPI tested.MANUFACTURER:...MSRP: $261.25$209.00 -
Out of stock
BALLISTIC BBL 300BLK 10.3 HNSN LPGB
Ballistic Advantage
MSRP: $261.25$209.00At Ballistic Advantage they produce quality AR barrels that exceed the most enduring demands of their customers. All of their AR barrels surpass the competition in accuracy, precision, and beautifully contoured aesthetics. BA's engaged team of engineers...MSRP: $261.25$209.00