LITTLE KNOWN FACTS ABOUT CMMG MK57.

As CMMG designed a manufacturer in part by supporting and innovating exceptional calibers while in the AR System, the addition of the 5.7x28mm Mk57 quick-barrel rifle listed here is probably going only the start.The projectiles would stick or drag in there as well as follower would bind. Given that the ProMags have no inward-projecting component a