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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LANTAC USA M-Spec BCG for 308/762
LANTAC USA$233.99LANTAC 01-MSPEC-762-NIB-BCG M-SPEC BCG 308/762 NIB The LANTAC USA M-Spec Bolt Carrier Group is a high-quality component designed for reliable performance in 308 and 7.62 rifles. Crafted to meet strict manufacturing standards, this bolt carrier group... -
One Horse M16 Nitrided Bolt Carrier Group for 5.56 NATO and 300 Blackout
One Horse LLC$80.99ONE 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$127.99TACFIRE 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-308 Bolt Carrier Group for AR10 / DPMS 308 Win Steel w/ Nitride Finish
TacFire$152.99TacFire BCG308 Bolt Carrier Group 308 Win Black Steel Fits AR10 Compatible w/ DPMS TacFire BCG-308 Bolt Carrier Group for AR10 and DPMS The TacFire BCG-308 is a steel bolt carrier group designed for 308 Winchester AR10 platform rifles, including... -
White Label Armory M16 Bolt Carrier Group for 5.56 NATO AR Rifles
White Label Armory$147.99White Label Armory WLA-BCG-3001 M16 Bolt Carrier Group 5.56 NATO Billet Extractor Black The White Label Armory M16 Bolt Carrier Group is designed for reliable performance in 5.56 NATO AR platform rifles. Built with precision machined billet components,... -
TacFire BCG-45ACP-G2 45 ACP AR Pistol Glock/S&W Bolt Carrier Group Nitride Finish
TacFire$134.99TACFIRE 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... -
LANTAC USA 01-UP-762-NIT-EBCG Enhanced Bolt Carrier Group for 308/7.62 Black
LANTAC USA$316.99LANTAC 01-UP-762-NIT-EBCG ENHANCED BCG 308/762 BLK LANTAC USA 01-UP-762-NIT-EBCG Enhanced Bolt Carrier Group for 308/7.62 Black is a high-performance bolt carrier group designed for AR-10 and similar platform rifles chambered in .308 Winchester and 7.62... -
LANTAC USA M-Spec BCG 223/556 Black
LANTAC USA$170.99LANTAC 01-MSPEC-556-NIT-BCG M-SPEC BCG 223/556 BLK LANTAC USA M-Spec BCG 223/556 Black is a high-quality bolt carrier group designed for AR-15 and similar rifle platforms. Manufactured by LANTAC USA, this BCG features a nitride finish for enhanced... -
LANTAC USA M-Spec BCG for 308/762 Black Model 01-MSPEC-762-NIT-BCG
LANTAC USA$220.99LANTAC 01-MSPEC-762-NIT-BCG M-SPEC BCG 308/762 BLK LANTAC USA M-Spec BCG for 308/762 Black Model 01-MSPEC-762-NIT-BCG is a high-quality, durable bolt carrier group designed specifically for 308 and 7.62 NATO platforms. Made by LANTAC USA, this model... -
LANTAC USA Enhanced Bolt Carrier Group for 223/556
LANTAC USA$269.99LANTAC LA00223 ENHANCED BCG 223/556 NIB The LANTAC USA LA00223 Enhanced Bolt Carrier Group is designed for optimal performance in 223 and 556 caliber firearms. Crafted with precision, this bolt carrier group ensures reliable cycling and... -
LANTAC USA M-SPEC BCG 223/556 Nickel Boron
LANTAC USA$179.99LANTAC 01-MSPEC-556-NIB-BCG M-SPEC BCG 223/556 NIB The LANTAC USA 01-MSPEC-556-NIB-BCG is a bolt carrier group designed specifically for 223 and 556 caliber rifles. It provides reliable cycling and enhanced durability for your AR-15 platform. Made from... -
FailZero AR10 BCG NO HAMMER BLK
FailZero$274.99FailZero AR10 BCG No Hammer – Black The FailZero AR10 BCG (No Hammer) in Black is a high-performance bolt carrier group designed for serious shooters and precision builders. Coated with FailZero’s advanced EXO Nickel Boron for superior... -
WMD NIB-X BCG WITHOUT HAMMER 308
WMD Guns$233.10WMD NiB-X BCG Without Hammer – .308 The WMD NiB-X Bolt Carrier Group for .308/AR10 (No Hammer) is a premium-grade BCG engineered for peak performance and long-lasting reliability. Featuring WMD’s proprietary NiB-X... -
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... -
LBE 308 BOLT CARRIER GROUP
LBE Unlimited$234.99LBE .308 Bolt Carrier Group The LBE .308 Bolt Carrier Group is a reliable, budget-friendly upgrade for your AR10 or LR-308 rifle. Built to perform in demanding conditions, this full-mass BCG delivers smooth cycling and consistent performance... -
CMC ENHANCED BCG 6MM ARC NTRD BLK
CMC$179.10CMC Enhanced BCG 6mm ARC Nitrided Black The CMC Enhanced BCG 6mm ARC Nitrided Black is a high-performance bolt carrier group engineered specifically for the 6mm ARC (Advanced Rifle Cartridge) chamber. Built for precision, durability, and... -
AERO AR15 6.5GREN BCG W/9310 BLK
Aero Precision$159.99Aero AR15 6.5 Grendel BCG with 9310 Black The Aero AR15 6.5 Grendel BCG with 9310 Black is a precision-engineered bolt carrier group designed specifically for the 6.5 Grendel cartridge. With its durable 9310 steel construction and black phosphate finish,... -
BATTLEARMS BAD 556 AR15 BCG TITANIUM ARMORTI
Battle Arms Development$395.00BAD 556 AR15 BCG Titanium Armorti The BAD 556 AR15 BCG Titanium Armorti is a lightweight, high-performance bolt carrier group designed for elite shooters seeking the best in durability, smooth cycling, and advanced material technology... -
LANTAC E-BCG 556 SIDE CHARGE NIB
Lantac$289.99Lantac E-BCG 5.56 Side Charge NiB The Lantac E-BCG 5.56 Side Charge NiB is a premium, high-performance bolt carrier group designed for AR-15 platforms. Featuring a Nickel Boron (NiB) coating and an innovative side charging feature, this BCG delivers... -
AERO AR15 5.56 PRO SERIES BCG NTRD
Aero Precision$174.99Aero AR15 5.56 Pro Series BCG Nitrided The Aero AR15 5.56 Pro Series BCG Nitrided is a high-performance bolt carrier group designed to deliver exceptional reliability, durability, and smooth cycling in your AR-15 platform. Coated with a nitrided finish... -
FailZero M16 BOLT CARRIER GROUP
FailZero$169.99FailZero M16 Bolt Carrier Group The FailZero M16 Bolt Carrier Group (BCG) is a premium, high-performance component designed for AR-15 and M16 rifles. With its advanced EXO coating, this BCG offers exceptional durability, smooth cycling, and... -
FailZero AR15 BOLT CARRIER GROUP
FailZero$169.99FailZero AR15 Bolt Carrier Group The FailZero AR15 Bolt Carrier Group (BCG) is a top-tier, high-performance upgrade designed to maximize the reliability, smooth cycling, and longevity of your AR-15 rifle. Featuring EXO coating for superior... -
FailZero 6MM ARC BCG NO HAMMER NIB
FailZero$189.99FailZero 6mm ARC BCG No Hammer – NiB The FailZero 6mm ARC Bolt Carrier Group without Hammer is a premium-grade component designed to deliver exceptional reliability and performance for rifles chambered in 6mm ARC. Coated with FailZero’s... -
WMD NIB-X BCG WITH HAMMER 556
WMD Guns$156.60WMD NiB-X BCG with Hammer – 5.56 The WMD NiB-X Bolt Carrier Group with Hammer is a premium, full-featured BCG designed for AR-15 rifles chambered in 5.56 NATO and .223 Remington. Featuring WMD’s exclusive NiB-X (Nickel Boron) coating, this... -
WMD NIB-X BCG WITHOUT HAMMER 556
WMD Guns$147.60WMD NiB-X BCG Without Hammer – 5.56 The WMD NiB-X Bolt Carrier Group Without Hammer is a premium, drop-in upgrade for AR-15 rifles chambered in 5.56 NATO, .223 Remington, and .300 Blackout. Featuring WMD’s proprietary NiB-X... -
BLACK RAIN 223 BOLT CARRIER GRP LEFT
Black Rain Ordnance$244.00Black Rain .223 Bolt Carrier Group – Left-Handed The Black Rain Ordnance .223 Bolt Carrier Group – Left-Handed is a precision-engineered BCG built specifically for left-handed AR-15 rifles chambered in .223 Remington and 5.56 NATO. Known for... -
AERO AR15 5.56 BCG W/9310 BLK NTRD
Aero Precision$154.99Aero AR15 5.56 BCG w/9310 Bolt – Black Nitride The Aero Precision AR15 5.56 BCG with 9310 Bolt and a sleek black nitride finish is a rugged, reliable upgrade for any AR-15 rifle chambered in 5.56 NATO, .223 Remington, or .300 Blackout... -
CMMG BCG AR15 6.5GRN/6MM ARC
CMMG$199.95CMMG BCG AR15 – 6.5 Grendel / 6mm ARC The CMMG AR15 Bolt Carrier Group for 6.5 Grendel and 6mm ARC is a precision-engineered BCG designed for superior function, reliability, and performance in your AR-15 rifle. Built from high-grade materials and... -
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... -
SANTAN AR15 ENHNCD BCG 6MM ARC BLK
San Tan Tactical$200.00San Tan AR15 Enhanced BCG – 6mm ARC, Black The San Tan Tactical Enhanced AR15 Bolt Carrier Group is a premium, purpose-built component designed for 6mm ARC and 6.5 Grendel (Type II) AR-15 platforms. Engineered for shooters who demand reliability,... -
LANTAC 308 ENHANCED BCG BLK NITRIDE
Lantac$316.99Lantac 308 Enhanced BCG – Black Nitride The Lantac Enhanced 308 Bolt Carrier Group is a high-performance, precision-machined BCG built for AR-10 / LR-308 rifles chambered in .308 Winchester, 7.62x51 NATO, and other large-frame calibers. Coated in a... -
LANTAC 556 ENHANCED BCG BLK NITRIDE
Lantac$261.99Lantac 5.56 Enhanced BCG – Black Nitride The Lantac 5.56 Enhanced Bolt Carrier Group is a high-performance upgrade for AR-15 platforms chambered in 5.56 NATO, .223 Remington, and .300 Blackout. Featuring Lantac’s signature enhanced cam path... -
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... -
KAK BCG M16 762X39 K-SPEC NP3 GRY
KAK Industries$251.99KAK BCG M16 – 7.62x39 K-Spec, NP3, Gray The KAK BCG M16 – 7.62x39 K-Spec is a high-performance bolt carrier group designed for 7.62x39 AR-15 builds. Featuring a K-Spec profile and NP3 (Nickel-Teflon) coating, this BCG offers enhanced... -
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... -
ODIN ENHANCED 9MM BCG STAINLESS
Odin Works$160.55ODIN ENHANCED 9MM BCG STAINLESS – PRECISION ENGINEERING FOR 9MM AR BUILDS The ODIN ENHANCED 9MM BCG STAINLESS is built for shooters who demand premium materials, enhanced performance, and reliability in their blowback-operated 9mm AR... -
ODIN ENHANCED 9MM BCG BLACK
Odin Works$160.55ODIN ENHANCED 9MM BCG BLACK – SMOOTH, RELIABLE PERFORMANCE FOR YOUR PCC The ODIN ENHANCED 9MM BCG BLACK is engineered for precision and dependability in 9mm AR platforms. Designed to handle the unique demands of pistol-caliber... -
FailZero 9MM BCG NO HAMMER BLK NITRIDE
FailZero$179.99FAILZERO 9MM BCG NO HAMMER BLK NITRIDE – DEPENDABLE PERFORMANCE FOR YOUR PCC The FailZero 9MM BCG NO HAMMER BLK NITRIDE is engineered for maximum reliability in blowback-operated AR-style 9mm rifles and pistols. Coated in a durable black nitride... -
LANTAC 556 ENHANCED BCG TIN
Lantac$305.99LANTAC 556 ENHANCED BCG TiN – PREMIUM TITANIUM NITRIDE PERFORMANCE The LANTAC 556 ENHANCED BCG TiN sets a new standard in bolt carrier group performance. Coated in an ultra-smooth Titanium Nitride (TiN) finish, this BCG is built to enhance your... -
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...
