BCG
Gas & Brass Armory offers a trusted selection of AR-15 Bolt Carrier Groups (BCGs) for your rifle builds in Brandon, FL. Whether you're looking for a reliable mil-spec BCG or a premium enhanced model, we stock top brands like Aero Precision, BCM, FailZero, and Toolcraft. Choose from phosphate, nitride, or nickel boron finishes, with full-auto and lightweight options available. All BCGs are built to perform under pressure and keep your rifle cycling reliably.
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FZ LIGHTWEIGHT BOLT CARRIER GROUP
FailZero
MSRP: $254.19$203.35This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both...MSRP: $254.19$203.35 -
FZ AR10 BCG NO HAMMER NIB
FailZero
MSRP: $287.50$230.00This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR10 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both...MSRP: $287.50$230.00 -
DD BOLT CARRIER GROUP 5.56
Daniel Defense
MSRP: $285.00$228.00Daniel Defense 5.56 NATO (5.56x45mm & .223 Remington) / 300 Blackout (7.6x35mm) full-auto compatible, M16 Profile, complete bolt carrier group assembly.MANUFACTURER: Daniel DefenseMPN: 04-013-19032MODEL: 556Finish: MatteType: Bolt Carrier GroupColor:...MSRP: $285.00$228.00 -
CMMG BCG AR15 6.5GRN/6MM ARC
CMMG
MSRP: $247.45$176.75This BCG is designed to operate with either 6.5 Grendel or Hornady's new 6mm ARC. Will not work with CMMG MkW platform. It is designed for standard AR variants.MANUFACTURER: CMMGMPN: 64BA44FMODEL: 0Description: Bolt Carrier GroupType: Bolt Carrier...MSRP: $247.45$176.75 -
CMC ENHANCED BCG 6MM ARC NTRD BLK
CMC Triggers
MSRP: $250.74$179.10The CMC Triggers Suppressor Optimized Enhanced Bolt Carrier Group for the New Hornady 6mm ARC is designed for shooters who demand superior performance weapon components in the heart of their firearm. CMC Triggers manufactures the highest quality firearms...MSRP: $250.74$179.10 -
BOOTLEG FOUR POS ADJ BOLT CAR COMPL
Bootleg
MSRP: $279.93$199.95Complete Bolt carrier group, Machined from S7 Tool Steel, Lithium Isonite Coating, 4 Setting Adjustable Vent System relieves excess gas pressure created from suppressor use, creating longer dwell time and less blowback to the shooter. Gas Adjustment can...MSRP: $279.93$199.95 -
BLACK RAIN 223 BOLT CARRIER GRP LEFT
Black Rain Ordnance
MSRP: $273.70$195.50Black Rain Ordnance, Inc. is a precision firearms manufacturer specializing in modern sporting rifle designs and high quality accessories.MANUFACTURER: Black Rain OrdnanceMPN: BRO-BCG-LHMODEL: 223Description: Biohazard EngravedFinish: Nib-XType: Bolt...MSRP: $273.70$195.50 -
BAD 9MM AR15 BOLT CARRIER GROUP BLK
Battle Arms Development
MSRP: $237.93$169.95Enhanced 9mm Blowback AR-15 Bolt Carrier Group is compatible with both COLT and GLOCK magazine configurations. Features reliable AR-15 style extractor claw with O-Ring and spring and broad trigger compatibility with ramped bottom geometry. Charging...MSRP: $237.93$169.95 -
BAD M4/M16 ENHANCED BCG
Battle Arms Development
MSRP: $265.93$189.95Established in 2009, Battle Arms Development, Inc. (B.A.D. Inc.) stands as a distinguished force in the realm of small arms innovation. Nestled in the heart of Henderson, Nevada, their company is driven by a relentless commitment to pushing the...MSRP: $265.93$189.95 -
AERO AR15 6.5GREN BCG W/9310 BLK
Aero Precision
MSRP: $223.99$159.99This high quality bolt carrier group is a valuable addition to your 6.5 Grendel/6mm ARC build.MANUFACTURER: Aero PrecisionMPN: APRH100725CMODEL: Bolt Carrier GroupDescription: 6.5 GrendelFinish: NitrideType: Bolt Carrier GroupColor: BlackMSRP: $223.99$159.99 -
Out of stock
WMD NIB-X BCG 7.62X39
WMD Guns
MSRP: $245.70$175.50Manufactured by Defense Industrial Base suppliers to WMD's exacting specifications to provide the best BCG available, these BCGs are specifically engineered for NiB-X nickel boron coating to provide long life, high reliability and easy cleaning and...MSRP: $245.70$175.50 -
Out of stock
WMD NIB-X BCG WITHOUT HAMMER 308
WMD Guns
MSRP: $291.38$233.10The NiB-X .308 Bolt Carrier Group provides long life and easy cleaning in the harshest of environments. DPMS compatible.MANUFACTURER: WMD GunsMPN: NIBXBCG308MODEL: 0Description: Carrier Group without HammerFinish: Nib-XType: Bolt Carrier GroupColor:...MSRP: $291.38$233.10