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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Out of stock
FZ AR15 BCG NO HAMMER MATTE
FailZero
MSRP: $198.88$143.00This 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: $198.88$143.00 -
Out of stock
FZ M16/M4 BCG NO HAMMER BLK
FailZero
MSRP: $198.88$143.00This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and...MSRP: $198.88$143.00 -
Out of stock
FZ AR15 BCG NO HAMMER BLK
FailZero
MSRP: $198.88$143.00This 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: $198.88$143.00 -
Out of stock
FZ BASIC SEMI KIT BOLT & HAMMER
FailZero
MSRP: $217.81$156.00This 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: $217.81$156.00 -
Out of stock
FZ M16/M4 BOLT CARRIER GROUP
FailZero
MSRP: $217.81$156.00This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and...MSRP: $217.81$156.00 -
Out of stock
FZ 6.5GREN BCG NO HAMMER NIB
FailZero
MSRP: $217.81$156.00This 6.5 Grendel Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6.5 Grendel (Type 2). All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity,...MSRP: $217.81$156.00 -
Out of stock
FZ M16 BOLT CARRIER GROUP
FailZero
MSRP: $179.93$129.00This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and...MSRP: $179.93$129.00 -
Out of stock
BOOTLEG 5.56 NITRIDE BCG COMPLETE
Bootleg
MSRP: $153.93$110.00Machined from 4140, Nitride Coating, MIL-SPEC configuration, Staked MIL-SPEC Gas Key, M16 Style.MANUFACTURER: BootlegMPN: BP-C15-BCGMODEL: 0Description: Bolt Carrier GroupType: Bolt Carrier GroupColor: BlackMSRP: $153.93$110.00 -
Out of stock
BAD 9MM AR15 BOLT CARRIER GROUP BLK
Battle Arms Development
MSRP: $237.93$170.00Enhanced 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$170.00 -
Out of stock
ANGSTADT AR15 BCG 556NATO BLK
Angstadt Arms
MSRP: $170.80$122.00The heart of a reliable AR-15 build is a quality 5.56 bolt carrier group assembly. These are the same high quality BCG's Angstadt makes for law enforcement and military groups around the world. Machined to mil-spec dimensions and finished in a beautiful...MSRP: $170.80$122.00 -
Out of stock
AERO AR15 6.5GREN BCG W/9310 BLK
Aero Precision
MSRP: $223.99$160.00This 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$160.00 -
Out of stock
AERO AR15 5.56 BCG W/9310 BLK NTRD
Aero Precision
MSRP: $216.99$155.00This high quality bolt carrier group is a valuable addition to your AR15 build.MANUFACTURER: Aero PrecisionMPN: APRH100615CMODEL: Bolt Carrier GroupDescription: Standard Bolt Carrier GroupType: Bolt Carrier GroupColor: BlackMSRP: $216.99$155.00