Browse bolt carrier groups designed for rifle builds, replacement, upgrades, and dependable cycling performance across compatible platforms. Whether you need a complete BCG for a new build or a replacement for routine maintenance, this category includes options built for proper fit, reliable function, and consistent everyday performance.
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KAK Industry M16 5.56 NATO Bolt Carrier Group
KAK INDUSTRY$116.99KAK MO-425-0512-001 M16 5.56 NATO BCG The KAK Industry MO-425-0512-001 bolt carrier group is a high-quality firearm component designed for M16 rifles chambered in 5.56 NATO. This bolt carrier group (BCG) is engineered to provide reliable cycling and... -
KAK Industry MO-KAK-9MM Enhanced Bolt Carrier Group for 9mm Pistols and Carbines
KAK INDUSTRY$134.99KAK MO-KAK-9MM KAK 9MM ENHANCED BCG The KAK Industry MO-KAK-9MM Enhanced Bolt Carrier Group is designed for reliable performance in 9mm firearms, including pistols and carbines. Built with precision engineering, it offers enhanced durability and... -
KAK Industry M16 5.56 C158 Chrome/Phosphate Bolt Carrier Group
KAK INDUSTRY$125.99KAK MO-425-3312-003 M16 5.56 C158 CHRM/PHOS BCG The KAK Industry MO-425-3312-003 Bolt Carrier Group (BCG) is designed for M16 rifles chambered in 5.56 NATO, offering reliable cycling and enhanced durability. Constructed with chrome and phosphate... -
KAK Industry MO-425-0505-001 M16 5.56 K-Spec Chrome Firearm Part
KAK INDUSTRY$116.99KAK MO-425-0505-001 M16 5.56 K-SPEC CHROME The KAK Industry MO-425-0505-001 is a precision-engineered M16 5.56 caliber K-Spec chrome firearm component designed for reliable performance and durability. Crafted to meet strict specifications, this part is... -
KAK Industry AR-15 Bolt for 5.56 and 300 Blackout with Phosphate Finish
KAK INDUSTRY$80.99KAK MO-303-0502-011 AR-15 BOLT 556/300BO PHOS The KAK Industry MO-303-0502-011 AR-15 bolt is a high-quality firearm component designed to ensure reliable performance and durability in your rifle. Compatible with 5.56 NATO and 300 Blackout calibers, this... -
KAK Industry M16 224 Valkyrie / 68 SPC Bolt Carrier Group
KAK INDUSTRY$125.99KAK MO-425-0512-019 M16 224 VALKYRIE/68SPC BCG The KAK Industry M16 224 Valkyrie / 68 SPC Bolt Carrier Group is a high-quality firearm component designed for reliable cycling and optimal performance in compatible rifle platforms. Crafted for precision... -
KAK AR-15 Bolt / 5.56mm / 300 Blackout Cartridges Chrome Finish
KAK INDUSTRY$112.99The KAK Industry AR-15 bolt is a precision-machined firearm part designed for reliable chambering and cycling in AR-15 rifles chambered in 5.56mm NATO and 300 Blackout. Constructed from high-quality materials with a chrome finish, this bolt ensures... -
One Horse Nickel Boron Bolt Carrier Group for 5.56 NATO and 300 Blackout
One Horse LLC$134.99The One Horse Nickel Boron Bolt Carrier Group is a high-performance firearm component designed for AR-15 style rifles chambered in 5.56 NATO and 300 Blackout. Crafted with durability and precision in mind, this BCG features a nickel boron finish that... -
Seekins Precision M2 Bolt Heads for .223 Caliber
Seekins Precision$94.99Seekins Precision M2 Bolt Heads for .223 Caliber The Seekins Precision Model 11700173F M2 bolt heads are precision-engineered components designed specifically for AR-15 style rifles chambered in .223 caliber. Crafted with high-quality materials, these... -
Luth-AR Bolt Carrier Assembly for .223 Caliber
Luth-AR$122.99LUTH-AR BC-A-223 FULL ASSY BOLT CARR 223 This bolt carrier assembly is designed for use with .223 caliber firearms, providing reliable cycling and smooth operation. It is a vital component for maintaining firearm performance, especially during range... -
LUTH-AR BC-A-223C Full Assembly Bolt Carrier for 223 Remington
Luth-AR$126.99LUTH-AR BC-A-223C FULL ASSY BOLT CARR 223 MGPHO This bolt carrier assembly is designed for the .223 Remington caliber and is compatible with AR-style rifles. It provides reliable operation and smooth cycling, making it suitable for range training,... -
One Horse M16 Nitrided Bolt Carrier Group for 5.56 NATO and 300 Blackout
One Horse LLC$79.99ONE OH-UBCO1 M16 NITRIDE BCG 5.56 300BO The One Horse LLC OH-UBCO1 M16 Nitrided Bolt Carrier Group is a high-quality component designed for AR-15 platform rifles chambered in 5.56 NATO and 300 Blackout. Crafted with precision, this BCG features a... -
TacFire BCG-9MM-G3 9mm AR Pistol Glock Colt SMG Bolt Carrier Group
TacFire$125.99TACFIRE BCG9MMG3 9MM AR PST GLK COLT SMG The TacFire BCG-9MM-G3 is a high-quality bolt carrier group designed for 9mm AR-style pistols, Glocks, Colts, and SMGs. Constructed with durable materials, this bolt carrier provides reliable cycling and... -
TacFire BCG-45ACP-G2 45 ACP AR Pistol Glock/S&W Bolt Carrier Group Nitride Finish
TacFire$131.99TACFIRE BCG45ACPG2 45 AR PST GLK SW M&P The TacFire BCG-45ACP-G2 is a high-quality bolt carrier group designed specifically for 45 ACP AR pistols compatible with Glock and Smith & Wesson platforms. Constructed with durability and reliability in... -
SPIKE'S M16 BOLT CARRIER GROUP BLK
Spike's Tactical$134.96Spike’s Tactical M16 Bolt Carrier Group – Black The Spike’s Tactical M16 Bolt Carrier Group (BCG) is a top-tier upgrade trusted by military professionals, law enforcement, and civilian shooters alike. Coated in a durable black phosphate... -
KAK K-SPEC ENH AR CAR DV SC NP3/CHR
KAK Industries$134.99KAK K-SPEC Enhanced AR Carbine BCG – NP3/Chrome Dual Vent The KAK K-SPEC Enhanced AR Carbine Bolt Carrier Group is a premium, competition-grade BCG engineered for maximum reliability, durability, and smooth cycling. Finished in a sleek combination... -
KAK AR15 BCG M16 556/300 CLP BLK
KAK Industries$116.99KAK AR15 BCG M16 – 5.56 / .300 Blackout, CLP, Black The KAK AR15 M16 BCG is an exceptional bolt carrier group designed for 5.56 NATO and .300 Blackout calibers, offering superior performance, durability, and reliability for your AR-15 build... -
BOOTLEG 5.56 NITRIDE BCG COMPLETE
Bootleg$129.95BOOTLEG 5.56 NITRIDE BCG COMPLETE – MIL-SPEC PERFORMANCE, ENHANCED DURABILITY Upgrade your AR-15 with the BOOTLEG 5.56 NITRIDE BCG COMPLETE, a premium bolt carrier group designed for performance, reliability, and longevity. Manufactured from... -
BATTLEARMS BAD M4/M16 STANDARD BCG
Battle Arms Development$135.00BAD M4/M16 STANDARD BCG – MIL-SPEC RELIABILITY FROM BATTLE ARMS DEVELOPMENT The BAD M4/M16 STANDARD BCG from Battle Arms Development is a rugged, MIL-SPEC bolt carrier group built to meet the needs of professional shooters, builders, and... -
ANGSTADT AR15 BCG 556NATO BLK
Angstadt Arms$122.00ANGSTADT AR15 BCG 556NATO BLK – PRECISION-BUILT FOR DUTY-READY RELIABILITY The ANGSTADT AR15 BCG 556NATO BLK is a high-performance bolt carrier group engineered for serious shooters and demanding environments. Designed for AR-15 platforms chambered... -
ROSCO 556NATO/300BLK BCG MELONITE BK
Rosco mfg.$140.00ROSCO 556NATO/300BLK BCG MELONITE BK – TOUGH, RELIABLE, BUILT TO RUN CLEAN The ROSCO 556NATO/300BLK BCG MELONITE BK is a premium bolt carrier group built for dependability and low-maintenance performance. Coated in a sleek black Melonite finish,...
