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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FAXON 5.56 GUNNER LW 9310 BCG NTRD
Faxon Firearms
MSRP: $286.35$215.00The Faxon 5.56 Gunner Lightweight 9310 Bolt Carrier Complete is a top-quality upgrade for your AR-15 rifle. This complete bolt carrier group is designed to improve the overall performance and reliability of your rifle, while also reducing its overall...MSRP: $286.35$215.00 -
FAXON 5.56 M16 BCG BLK
Faxon Firearms
MSRP: $186.76$126.00The Faxon 5.56 M16 Bolt Carrier Group, Nitride is a high-performance and reliable upgrade for your AR-15 rifle. This bolt carrier group is designed for optimal performance and is made from top-quality materials, ensuring durability and longevity. The...MSRP: $186.76$126.00 -
FAXON 5.56 9310 BOLT NITRIDE BLK
Faxon Firearms
MSRP: $70.83$48.00Seeing MIL-SPEC as just the starting point, Faxon set out to ensure the best options are available for their demanding customers. Improvements include using 9310 tool steel for the bolt, nitriding the assembly to increase surface hardness, decrease...MSRP: $70.83$48.00 -
FZ 9MM BCG NO HAMMER BLK NITRIDE
FailZero
MSRP: $208.35$149.00This 9mm Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most 9mm AR platform rifles and pistols. The FailZero Black Nitride 9mm BCG is compatible with both lowers designated for Glock or Colt magazines. All critical parts are...MSRP: $208.35$149.00 -
FZ M16/M4 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 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 -
FZ 7.62X39 BCG NO HAMMER NIB
FailZero
MSRP: $217.81$156.00This 7.62x39 Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil-spec upper receivers chambered in 7.62x39. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme...MSRP: $217.81$156.00 -
FZ 6.8SPC BCG NO HAMMER NIB
FailZero
MSRP: $217.81$156.00This 6.8 SPC Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6.8 SPC. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme...MSRP: $217.81$156.00 -
FZ 9MM BCG NO HAMMER NICKEL BORON
FailZero
MSRP: $265.19$190.00This 9mm AR Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most 9mm AR platform rifles and pistols. The FailZero 9mm BCG is compatible with both lowers designated for Glock or Colt magazines. All critical parts are coated with EXO...MSRP: $265.19$190.00 -
FZ 450 BUSHMASTER NO HAMMER NIB
FailZero
MSRP: $217.81$156.00This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec .450 Bushmaster Upper Receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanents dry lubricity, extreme durability, increase...MSRP: $217.81$156.00 -
FZ 458 SOCOM BCG NO HAMMER NIB
FailZero
MSRP: $217.81$156.00This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec .458 SOCOM Upper Receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability, and increased...MSRP: $217.81$156.00 -
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 -
FZ M16/M4 BCG NO HAMMER BLK NIT
FailZero
MSRP: $149.63$107.00High quality components and precise manufacturing make FailZero 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: $149.63$107.00