LITTLE KNOWN FACTS ABOUT CMMG MK57.

As CMMG built a manufacturer in part by supporting and innovating distinctive calibers while in the AR System, the addition of your five.7x28mm Mk57 quick-barrel rifle listed here is probably going only the start.The projectiles would stick or drag in there plus the follower would bind. Because the ProMags haven't any inward-projecting element and