THE COLT 10.5 INCH 9MM SMG UPPER RECEIVER ASSEMBLY DIARIES

The very best of the bolt carrier groups. The top is the typical 5.56mm bolt carrier group. Detect the bolt, cam pin and also the provider crucial. On The underside could be the 9mm SMG bolt group.Posted by Phil Herbert on twenty second Apr 2023 I’ve experienced several Colt 9mm AR15s in the two pre-ban and article-ban configurations And that i e