AR-15 Bolt Carrier Groups
High-quality AR15 Bolt Carrier Group (BCG) at Affordable Prices
The bolt carrier group controls all functions of the AR15 – chambering, firing, and extracting spent rounds. Choose wisely with AT3 Tactical.
The majority of weapon failures stem from issues with the bolt carrier group, and a good bolt carrier group can keep the failures to a minimum.
Sort
Filter
List
Grid
-
NEW
Ballistic Advantage Phosphate .308 Bolt Carrier Group
Ballistic Advantage Phosphate .308 Bolt Carrier Group: Durable Precision Component This robust bolt carrier group from Ballistic Advantage offers reliability and performance for .308 rifle builds. Crafted from high-quality materials... -
AT3™
AT3™ Black Nitride 5.56 Bolt Carrier Group with Breek Arms Warhammer AR-15 Charging Handle
AT3 Black Nitride BCG + Breek Warhammer AR-15 Charging Handle The AT3 Tactical BCG and Breek Warhammer Charging Handle pair perfectly to complete your AR-15 upper receiver. Save on this...8 Options -
AT3™RECOMMENDED
AT3™ AR-15 Bolt Carrier Group (BCG) – 5.56 NATO/.300 Blackout – Black Nitride
AT3 Tactical is bringing you the best with this Top-Tier Black Nitride Bolt Carrier Group Getting a high quality bolt carrier group (BCG) that runs well in your rifle is... -
RECOMMENDEDNEW
KAK Industry K-SPEC Side Venting 5.56 BCG with Dual Ejector Bolt
KAK Industry K-SPEC Side Venting 5.56 BCG with Dual Ejector Bolt The K-SPEC Enhanced AR15 BCG is a high-quality bolt carrier group designed for use with both 5.56 and 300... -
AT3™
AT3™ AR-15 Replacement Bolt – 5.56 NATO/.300 Blackout – Black Nitride
AT3 Replacement AR-15 Bolt This AR-15 replacement bolt from AT3 Tactical easily replaces a broken bolt in your rifle. This bolt comes complete with extractor and ejector assemblies already installed... -
NEW
Armaspec AR Firing Pin – Stainless Steel – Multiple Platforms
Ignite Your AR's Potential Whether you're running an AR-15, AR-10, or AR-9 platform, ensure reliable ignition with the ultra-durable Armaspec Firing Pin. This mission-critical component is expertly machined from premium...3 Options -
AT3™
AT3™ Mil-Spec AR-15 Firing Pin
AT3 Hard Chrome Firing Pin The AT3™ Mil-Spec AR-15 Firing Pin is a premium replacement component for your AR-15. This component is guaranteed to fit and function in your AR... -
Bear Creek Arsenal 5.56 NATO / .300 Blackout / .350 Legend AR-15 Bolt Carrier...
Bear Creek Arsenal 5.56 NATO / .300 Blackout / .350 Legend AR-15 Bolt Carrier Group - Nitride The Bear Creek Arsenal AR-15 Bolt Carrier Group (BCG) is a versatile component... -
AT3™
AT3™ AR-15 Bolt Carrier Group – 5.56 NATO/.300 Blackout – Nickel Boron
Get the Performance You Need with a Nickel Boron Bolt Carrier Group Whether you're starting a fresh build or upgrading from stock, a bolt carrier group that performs reliably is... -
RECOMMENDED
KAK Industry K-SPEC Downward Venting 5.56 BCG with Dual Ejector Bolt
KAK Industry K-SPEC Downward Venting 5.56 BCG with Dual Ejector C158 Bolt The K-SPEC Enhanced AR15 BCG is a high-quality bolt carrier group designed for use with both 5.56 and... -
AT3™
AT3™ Slick Side AR-15 Upper with Black Nitride 5.56 Bolt Carrier Group
AT3 Black Nitride Bolt Carrier Group with Slick Side Billet Upper - 8 Colors to Choose From Get a head start on your build with the AT3 Black Nitride Bolt...8 Options -
Luth-AR One Piece Helical Gas Ring for AR-15 Bolts
AR-15 Helical Gas Ring The Luth-AR One Piece Helical Gas Ring for AR-15 rifles seals your gas system more effectively than older style gas rings. This stainless steel coil doesn't... -
CMMG AR-15 Bolt Rehab Parts Kit
Easily Repair your AR-15 Bolt with CMMG Parts The bolt is one of the most crucial pieces of your rifle, perhaps the most. If your bolt fails, for whatever reason,... -
AT3™
AT3™ Black Nitride 9mm Bolt Carrier Group with Breek Arms Warhammer AR-15 Charging Handle
AT3 9mm Nitride BCG + Breek Warhammer AR-15 Charging Handle Save on this bundle to take your PCC build to the next level, with a reliable 9mm bolt and excellent...8 Options -
AT3™
AT3™ AR-15 Bolt Carrier Group – 6.5 Grendel Type II – Nickel Boron
Run Your 6.5 Grendel or 6mm ARC Upper Right with a NiB BCG It's important to have a bolt carrier group that has everything you need. MPI inspected bolt, properly... -
Bear Creek Arsenal 7.62×39 / 12.7×42 AR-15 Bolt Carrier Group – Nitride
Bear Creek Arsenal 7.62x39 / 12.7x42 AR-15 Bolt Carrier Group - Nitride The Bear Creek Arsenal 7.62x39 / 12.7x42 bolt carrier group is compatible with a wide range of AR-15... -
Bear Creek Arsenal 6.5 Grendel Type II AR-15 Bolt Carrier Group – Nitride
Bear Creek Arsenal 6.5 Grendel Type II AR-15 Bolt Carrier Group - Nitride The BC-15 is a high-quality rear charging bolt carrier group that is designed specifically for use with... -
Aero Precision AR-15 Nickel Boron Bolt Carrier Group
Aero Precision Nickel Boron 5.56 BCG Aero Precision's NiB bolt carrier group features more than just a chrome-like finish. The bolt receives magnetic particle inspection (MPI), and is shot-peened to... -
Aero Precision AR-15 Black Nitride Bolt Carrier Group
Aero Precision 5.56 Nitride Bolt Carrier Group Aero Precision makes high quality parts suitable for any build, and this BCG is no exception. This part features a slick, easy-to-clean black...2 Options -
Battle Arms Development Enhanced AR-15 Cast Bolt Catch
Battle Arms Development Enhanced AR-15 Cast Bolt Catch The Battle Arms Development Enhanced AR15 Cast Bolt Catch is an easy to install upgrade to a standard mil-spec bolt catch. The... -
Aero Precision PRO Series AR-15 Black Nitride Bolt Carrier Group
Go PRO - The Best BCG that Aero Precision has to Offer The Aero Precision PRO 5.56 Bolt Carrier Group represents the best value for the most prolific, high-volume shooters.... -
LBE Unlimited AR-15 Bolt Gas Rings, Set of 3
AR-15 Bolt Gas Rings (set of 3) Gas rings are an essential part of the AR-15 Bolt and are often some of the first parts to need replacement. Easy to... -
Faxon Firearms 9mm Nitride Bolt Carrier Group – Glock & Colt Compatible
Proven, Reliable, and Compatible with Glock and Colt Lowers Faxon's 2nd Generation 9mm Bolt Carrier Group stands above its competition as a reliable part with wide compatibility. The enhanced geometry... -
Odin Works .223/5.56 Black Nitride AR 15 Bolt Carrier Group
High-Quality BCG Upgrade For .223/5.56 & 300 Blackout The Odin Works .223/5.56 Bolt Carrier Group is a high-quality upgrade for Mil-Spec BCG that fits AR-15/M4 pattern rifles in .223 Remington,...
Other AR-15 Upper Receiver Components:
AR 15 Charging Handles
AR 15 Gas Blocks & Tubes
AR 15 Handguards & Quad Rails
AR-15 Barrels
AR-15 Bolt Carrier Groups
AR-15 Front Grips
AR-15 Upper Receivers and Parts
Muzzle DevicesAR-15 Handguard Accessories
We respect your privacy.