Bolts, Bolt Carrier Groups, and Accessories

The K-SPEC Enhanced AR-15 BCG is engineered for peak performance in 5.56 and 300 Blackout rifles, offering unparalleled reliability, whether youre operating with a suppressor or in the cleanest of conditions.Features :C158 Dual Ejector BoltDownward Gas...

The K-SPEC BCG combines multiple key features focused on increasing the reliability of your AR-15 style firearm no matter if you are running suppressed or unsuppressed, and regardless of conditions. The K-SPEC is a truly plug and play BCG that will...