CMMG MK57 CAN BE FUN FOR ANYONE

As CMMG built a brand name partly by supporting and innovating exceptional calibers from the AR System, the addition of the 5.7x28mm Mk57 small-barrel rifle in this article is probably going only the beginning.The projectiles would adhere or drag in there and the follower would bind. Since the ProMags have no inward-projecting portion and go away