COLT UPPER RECEIVER FOR SALE FOR DUMMIES

  The magwell engraving has transformed, and Colt has rebranded all their carbines as "Carbine" and no longer marked M4 Carbine.  Here is the only modify to the solution.Colt has decided to increase its AR choices outside of the direct-impingement path the organization is synonymous with Considering that the 1960s, by featuring a piston-pushed AR