Bolt Carrier Groups

Please Read: This is for either the M-16 spec BOLT KIT alone, or the M-16 spec CARRIER alone, each in DLC finish. DLC Finish on Outer Wear Surfaces, Phosphate Extractor and Phosphate/CL Gas Key with OCKS Carrier Key Screws.  Microbest is one of the...

***Cosmetic Blemish*** These are the same spec as our ALL-CHROME w/ PHOSPHATE EXTRACTOR BCGS. They will function properly 100% of the time but may exhibit cosmetic irregularities.    These have Mil-Spec Carrier Key Screws. If you prefer the...

***Cosmetic Blemish*** These are the same spec as our PREMIUM BCGS. They will function properly 100% of the time but may exhibit cosmetic irregularities.    The Ultimate Hard-Use 5.56 Bolt Carrier Group: These aren't designed to be pretty...

Limited Edition You may already be familiar with our original Super-Stakes in Chrome. These are based on our Phosphate+ except instead of the factory staking that most of our BCGs receive, we asked our fellow San Antonio Man-at-ARms (see what we did...

Introducing the 1K3 Bolt Carrier Group. Guaranteed for Life. M16 profile Bolt Carrier Groups, these are hand inspected and given a heavy duty custom stake before being laser branded with the 1K3 designation. Includes a sleek case for transport and...

***Does Not Include Carrier*** Mil-Spec Bolt - CHROME C158 Steel Shot Peened High Pressure Tested (HPT)  Magnetic Particle Inspected (MPI) *Ejector is either Chrome or Phosphate Chrome Silicon Ejector Spring by Sprinco Mil Spec Extractor -...

DETAILS SCP is incompatible with KAC SR15 BCG.   SCP (SOTAR Cam Pin) is a collaboration between Chad Albrecht of School of the American Rifle and Forward Controls Design.   The cam pin is a part of your rifle that pretty much no...

DLC Finish on Outer Wear Surfaces, Phosphate Extractor and Phosphate/CL Gas Key with OCKS Carrier Key Screws.  Microbest is one of the finest manufacturers of mil-spec bolt carrier groups for the military and small arms manufacturers. These are...

Limited Edition These are the same BCGs as our Premium Chrome, but we went one step farther. Instead of the factory staking that most of our BCGs receive, we asked our fellow San Antonio AR-tist (did we just coin that term?) Phillip Kimm of Bexar Arms to...

Limited Run w/ OCKS Carrier Key Screws Microbest is one of the finest manufacturers of mil-spec bolt carrier groups for the military and small arms manufacturers. These are individually High Pressure Tested and then undergo a Magnetic Particle Inspection...

Limited Run w/ OCKS Carrier Key Screws Nitride BCGs without OCKS can be found here Microbest is one of the finest manufacturers of mil-spec bolt carrier groups for the military and small arms manufacturers. These are individually High Pressure Tested and...

***In Stock***   The Ultimate Hard-Use 5.56 Bolt Carrier Group: These aren't designed to be pretty. They're not meant to compete with the gorgeous museum-quality $200+ units that other well-respected manufacturers are putting out. But this is not...