5.56 NATO AR-15 Bolt Carrier Groups
5.56 BCGs for your AR-15, including AT3’s affordable MPI inspected nitride bolt carrier group. Get your BCG today, with
Sort
Filter
List
Grid
-
AT3™
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... -
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 -
NEW
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 Bolt The K-SPEC Enhanced AR15 BCG is a high-quality bolt carrier group designed for use with both 5.56 and 300... -
NEW
KAK Industry K-SPEC Dual Ejector 5.56 NATO AR-15 Bolt
KAK Industry K-SPEC Dual Ejector 5.56 NATO AR-15 Bolt The K-SPEC Enhanced AR15 Bolt is a high-quality bolt designed specifically for the 5.56/300 Blackout caliber. It incorporates a dual ejector... -
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... -
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 -
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... -
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.... -
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,... -
Faxon Firearms 5.56 M16 Complete Bolt Carrier Group – Black Nitride
Black Nitride Faxon BCG for 5.56, .300 BLK, and .350 Legend This Faxon Firearms Bolt Carrier Group is a complete high-quality BCG upgrade designed for AR15/M16 platforms chambered in 5.56×45... -
Faxon Firearms 5.56 M16 Complete Bolt Carrier Group – TiN PVD
An Exceptional BCG Upgrade with A Unique TiN PVD Finish For 556 Rifles This Faxon Firearms Bolt Carrier Group is a complete high-quality BCG upgrade designed for AR15/M16 platforms chambered... -
Sons of Liberty Gun Works Bolt Carrier Group – .223/5.56 NATO
The Best AR-15 BCG Upgrade From Sons Of Liberty Gun Works The Sons of Liberty Gun Works Bolt Carrier Group is a high-quality BCG upgrade made to the highest standards... -
AT3™
AT3 Upper Receiver Black + AT3 Bolt Carrier Group + Breek Arms Warhammer Charging...
Complete your Next Build with AT3's Top-Selling Billet Upper Receiver and BCG plus the Trusted Breek Arms Warhammer Charging Handle Save by bundling vs purchasing the parts individually, plus free... -
Faxon Firearms 5.56 Gunner Lightweight Bolt Carrier Group – Black Nitride
Sleek and Reliable Lightweight BCG For 5.56 Gunner Rifles The Faxon Firearms 5.56 Gunner Lightweight Bolt Carrier Group is an outstanding option for AR-15 builders running the .223/5.56 caliber platform.... -
Wilson Combat AR-15/M16 Bolt Carrier Group – .223/5.56 NATO – Black Phosphate
Top-Quality Precision BCG from Wilson Combat The Wilson Combat AR-15/M16 Bolt Carrier Group is a precision quality part from Wilson Combat manufactured by the finest domestic Mil-Spec contractors and considered... -
Rise Armament Nickel Boron AR-15 Bolt Carrier Group
Rise Armament Nickel Boron AR-15 Bolt Carrier Group RISE Armament offers its signature AR-15 Bolt Carrier Group in a nickel boron coating, which provides unparalleled performance due to its unique... -
Faxon Firearms 5.56 M16 Complete Bolt Carrier Group – Chameleon PVD
An Exceptional BCG Upgrade with A Unique Chameleon PVD Finish For 556 Rifles This Faxon Firearms Bolt Carrier Group is a complete high-quality BCG upgrade designed for AR15/M16 platforms chambered... -
Battle Arms Development Standard M16 AR-15 Bolt Carrier Group
Battle Arms Development Standard M16 AR-15 Bolt Carrier Group Made with a variety of smoothly machined quality materials, this bolt carrier exceeds all mil-spec standards. A staked gas key and... -
Lantac AR-15 Enhanced Bolt Carrier Group – E-BCG Titanium Nitride .223/5.56 NATO
Enhance Your Accuracy With A Titanium Nitride Coated E-BCG The Lantac AR-15 Enhanced Bolt Carrier Group is designed and machined from 8620 steel with a shot-peened bolt. It's been manufactured... -
Battle Arms Development Titanium AR-15 Bolt Carrier Group
Full Auto Titanium AR-15 Bolt Carrier Group Lighten your AR15 with a Titanium Bolt Carrier with ArmorTI coating, providing properties never seen before. A smooth machined surface with the coating... -
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... -
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...Only$59.99 -
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 -
Bootleg Inc Four Position Adjustable AR-15 Bolt Carrier Group – 5.56 NATO/.300 BLK
High-Performance BCG Upgrade From Bootleg For Less Gas The Bootleg Inc Bolt Carrier Group is an innovative upgrade for Mil-Spec BCG that fits AR-15/M4 pattern rifles in .223 Remington, 5.56...
Back to top