LITTLE KNOWN FACTS ABOUT CMMG MK57.

As CMMG designed a brand partly by supporting and innovating unique calibers from the AR System, the addition in the 5.7x28mm Mk57 quick-barrel rifle right here is probably going only the start.The projectiles would stick or drag in there and the follower would bind. Given that the ProMags haven't any inward-projecting element and leave far more c