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$143.00The FailZero FZ AR15 BCG NO HAMMER MATTE is a precision-engineered bolt carrier group designed to fit most mil-spec AR-15 upper receivers without the hammer component. This assembly is finished in a durable matte black coating, offering a sleek...MSRP: $198.88$143.00 -
Out of stock
FZ M16/M4 BCG NO HAMMER BLK NIT
FailZero
MSRP: $149.63$107.00The FailZero FZ M16/M4 Bolt Carrier Group (BCG) is engineered for users seeking a reliable and durable upgrade for their M16 or M4 platform. This BCG features a no-hammer design, which reduces the number of moving parts and can contribute to smoother...MSRP: $149.63$107.00 -
Out of stock
FZ M16/M4 BCG NO HAMMER BLK
FailZero
MSRP: $198.88$143.00The FailZero FZ M16/M4 BCG No Hammer Black is a high-quality bolt carrier group designed for compatibility with most mil-spec M16, M4, and AR-15 upper receivers. This BCG is engineered without a hammer, catering to specific build preferences and...MSRP: $198.88$143.00 -
Out of stock
FZ AR15 BCG NO HAMMER BLK
FailZero
MSRP: $198.88$143.00The FailZero FZ AR15 BCG NO HAMMER BLK is a precision-engineered bolt carrier group designed for AR-15 platforms. Featuring a no-hammer configuration, this BCG is fully assembled and ready for installation in most mil-spec AR-15 upper receivers. The unit...MSRP: $198.88$143.00 -
Out of stock
FZ BASIC SEMI KIT BOLT & HAMMER
FailZero
MSRP: $217.81$156.00The FailZero FZ BASIC SEMI KIT BOLT & HAMMER is designed for reliability and enhanced performance in AR-15 style rifles. This kit features a fully assembled bolt and hammer set, engineered to meet the demanding standards of mil-spec components. Each...MSRP: $217.81$156.00 -
Out of stock
FZ M16/M4 BOLT CARRIER GROUP
FailZero
MSRP: $217.81$156.00The FailZero FZ M16/M4 Bolt Carrier Group is engineered to meet the demanding standards of modern AR platforms. Designed to fit most M16, M4, and AR15 upper receivers built to military specifications, this BCG is fully assembled for easy installation...MSRP: $217.81$156.00 -
Out of stock
FZ AR15 BOLT CARRIER GROUP
FailZero
MSRP: $179.93$129.00The FailZero FZ AR15 Bolt Carrier Group is engineered to meet the rigorous standards of AR15 platforms. Designed for compatibility with most mil-spec AR15 upper receivers, this bolt carrier group arrives fully assembled for straightforward installation...MSRP: $179.93$129.00 -
Out of stock
FZ 6.5GREN BCG NO HAMMER NIB
FailZero
MSRP: $217.81$156.00The FailZero FZ 6.5GREN BCG NO HAMMER NIB is a precision-engineered bolt carrier group designed specifically for 6.5 Grendel chambered upper receivers. This fully assembled unit fits most Mil-Spec uppers, ensuring reliable compatibility and performance...MSRP: $217.81$156.00 -
Out of stock
FZ M16 BOLT CARRIER GROUP
FailZero
MSRP: $179.93$129.00The FailZero FZ M16 Bolt Carrier Group is engineered for reliable performance and enhanced durability in AR-style rifles. Designed to fit most mil-spec M16, M4, and AR-15 upper receivers, this bolt carrier group arrives fully assembled for...MSRP: $179.93$129.00 -
Out of stock
ANGSTADT AR15 BCG 556NATO BLK
Angstadt Arms
MSRP: $170.80$122.00The Angstadt AR15 BCG 556NATO BLK is a precision-engineered bolt carrier group designed to meet the demanding standards of AR-15 platforms chambered in 5.56 NATO. Manufactured by Angstadt Arms, this bolt carrier group is crafted to mil-spec dimensions,...MSRP: $170.80$122.00 -
Out of stock
AERO AR15 6.5GREN BCG W/9310 BLK
Aero Precision
MSRP: $223.99$160.00The Aero Precision AR15 6.5GREN Bolt Carrier Group with 9310 steel construction is engineered to enhance the performance and reliability of your 6.5 Grendel or 6mm ARC build. Crafted from durable 9310 steel, this bolt carrier group offers exceptional...MSRP: $223.99$160.00 -
Out of stock
AERO AR15 5.56 BCG W/9310 BLK NTRD
Aero Precision
MSRP: $216.99$155.00The Aero Precision AR15 5.56 Bolt Carrier Group (BCG) with 9310 steel bolt is engineered to provide reliable performance and durability for your AR15 platform. Featuring a black nitride finish, this BCG offers enhanced corrosion resistance and smooth...MSRP: $216.99$155.00