WHAT DOES COLT SMG UPPER MEAN?

The best of your bolt provider teams. The best is the conventional 5.56mm bolt carrier group. Notice the bolt, cam pin as well as the carrier vital. On the bottom would be the 9mm SMG bolt group.Posted by Phil Herbert on twenty second Apr 2023 I’ve experienced a number of Colt 9mm AR15s in both equally pre-ban and post-ban configurations and I ev