THE 2-MINUTE RULE FOR CMMG MK57

As CMMG built a brand name partly by supporting and innovating one of a kind calibers in the AR platform, the addition in the five.7x28mm Mk57 quick-barrel rifle below is likely only the start.The projectiles would adhere or drag in there and also the follower would bind. Given that the ProMags have no inward-projecting section and leave a great d