THE CMMG MK57 DIARIES

As CMMG crafted a manufacturer in part by supporting and innovating one of a kind calibers during the AR System, the addition in the five.7x28mm Mk57 short-barrel rifle here is likely only the start.The projectiles would stick or drag in there plus the follower would bind. Since the ProMags don't have any inward-projecting portion and go away cons