5.56 NATO AR-15 Bolt Carrier Groups

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...

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...

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...

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....

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 5.56, 300 Blackout, and...

KAK Industry K-SPEC Enhanced AR-15 BCG Elevate your AR-15's performance with the KAK Industry K-SPEC Enhanced Bolt Carrier Group. Engineered for reliability in the most demanding conditions, this BCG features...

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...

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...

Battle Arms Development Enhanced AR15 BCG The Battle Arms Development Enhanced Bolt Carrier Group is a great choice for your AR15. Full-Auto Rated, build with 9310 steel, with a staked...