BCG's Bolt Carrier Group

Manufactured by our finest domestic Mil-Spec contractors these are among the best 5.56 AR rifle bolts on the market and the same bolts we use as the basis of our renowned custom rifles. Our bolt is precision machined from Carpenter No. 158 steel, shot...

The Gemtech Suppressed Bolt Carrier is a drop-in replacement and will allow the shooter to choose between suppressed (S) and unsuppressed (U) settings without any permanent modifications to the firearm. No longer will you need to change gas blocks,...

Specifications: 100% Mil-Spec 5.56mm / 300 Blockout Bolt: Carpenter 158, MARKED "M" for HPT & MPI Lot tested. Carrier: 8620 Full-auto M16 cut Chrome Lined Gas Key & Carrier Phosphate Finish Dry Film Cam Pin Firing Pin: 17-4...

High quality components and precise manufacturing make CMMG parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on...

5.56 Bolt Carrier Group Black Phosphate Finish Mil-Spec Shot peened & MP tested bolt Full Auto carrier w/staked carrier key