Quick view KAK Industry KAK Industry, K-SPEC Enhanced, Bolt Carrier, 8620 Steel Construction, Chrome Lined, Phosphate Finish, Black $109.95 $98.99 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.Features :Sand Cutter Carrier RailsDownward Gas... Compare Add to Cart