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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CMMG BOLT CARRIER GROUP MK3 308
CMMG
MSRP: $305.60$249.00The CMMG BOLT CARRIER GROUP MK3 308 is a precision-engineered component designed to enhance the performance and reliability of compatible firearms. Manufactured by CMMG, a reputable name in the industry, this bolt carrier group is crafted from...MSRP: $305.60$249.00 -
CMMG BCG AR15 6.5GRN/6MM ARC
CMMG
MSRP: $247.45$177.00The CMMG BCG AR15 6.5GRN/6MM ARC is a precision-engineered bolt carrier group designed specifically for AR-style rifles chambered in 6.5 Grendel and 6mm ARC calibers. Manufactured by CMMG, a trusted name in firearms components, this bolt carrier group...MSRP: $247.45$177.00 -
BLACK RAIN 223 BOLT CARRIER GRP LEFT
Black Rain Ordnance
MSRP: $273.70$196.00The BLACK RAIN 223 Bolt Carrier Group Left from Black Rain Ordnance is engineered for reliability and precision in modern sporting rifle platforms. Designed specifically for left-handed operation, this bolt carrier group ensures smooth cycling and...MSRP: $273.70$196.00 -
Out of stock
WMD NIB-X BCG WITHOUT HAMMER 308
WMD Guns
MSRP: $291.38$234.00The WMD Guns NIB-X BCG WITHOUT HAMMER for .308 caliber rifles offers a durable and corrosion-resistant solution for users seeking reliable performance. Featuring the advanced NiB-X finish, this bolt carrier group enhances longevity by providing superior...MSRP: $291.38$234.00 -
Out of stock
SANTAN AR10 ENHNCD BCG 308 NTRD BLK
San Tan Tactical
MSRP: $317.00$254.00The San Tan Tactical SANTAN AR10 ENHNCD BCG 308 NTRD BLK is a meticulously engineered bolt carrier group designed to enhance the performance of AR-10 style rifles chambered in .308. Crafted with precision, this enhanced BCG offers reliable cycling and...MSRP: $317.00$254.00 -
Out of stock
LBE 308 BOLT CARRIER GROUP
LBE Unlimited
MSRP: $268.03$208.00The LBE 308 Bolt Carrier Group by LBE Unlimited is engineered for reliable performance in DPMS-style .308 uppers. Crafted from durable billet 8620 steel, this bolt carrier group undergoes case hardening to enhance wear resistance and longevity, ensuring...MSRP: $268.03$208.00 -
Out of stock
LANTAC M-SPEC BCG 762 NITRIDE BLK
LanTac USA LLC
MSRP: $276.24$221.00The LANTAC M-SPEC BCG 762 NITRIDE BLK is a robust bolt carrier group designed to meet and exceed military specifications for AR-style rifles. Manufactured by LanTac USA LLC, this M-SPEC model features precise dimensions and tight tolerances that ensure...MSRP: $276.24$221.00 -
Out of stock
LANTAC M-SPEC BCG 556 TIN
LanTac USA LLC
MSRP: $279.99$200.00The LANTAC M-SPEC BCG 556 TIN by LanTac USA LLC is a precision-engineered bolt carrier group designed to meet and exceed military specifications. Crafted with attention to detail, this component offers reliable performance and durability essential for...MSRP: $279.99$200.00 -
Out of stock
KAK AR15 BCG M16 556 K-SPEC SV CHR
KAK Industry
MSRP: $274.99$220.00The KAK AR15 BCG M16 556 K-SPEC SV CHR from KAK Industry is a high-quality bolt carrier group designed to enhance the performance and reliability of AR-15 rifles chambered in 5.56 caliber. Crafted with precision engineering, this bolt carrier group...MSRP: $274.99$220.00 -
Out of stock
KAK AR15 BCG M16 556 K-SPEC CHR DE
KAK Industry
MSRP: $274.99$220.00The KAK Industry K-SPEC AR15 Bolt Carrier Group (BCG) is engineered to enhance the performance and reliability of your AR-15 platform. Designed with precision craftsmanship, this BCG is built to function seamlessly in a variety of firearm configurations,...MSRP: $274.99$220.00 -
Out of stock
FZ 9MM BCG NO HAMMER NICKEL BORON
FailZero
MSRP: $265.19$190.00The FailZero FZ 9MM BCG No Hammer Nickel Boron is a precision-engineered bolt carrier group designed for 9mm AR platform rifles and pistols. This fully assembled unit is compatible with lowers configured for Glock or Colt magazines, offering versatility...MSRP: $265.19$190.00 -
Out of stock
FZ LIGHTWEIGHT BOLT CARRIER GROUP
FailZero
MSRP: $254.19$204.00The FailZero FZ Lightweight Bolt Carrier Group is engineered to offer enhanced performance and reliability for AR-15 platforms. Designed with a low mass profile, this bolt carrier group reduces overall weight without compromising durability, making it an...MSRP: $254.19$204.00