HOW CMMG MK57 CAN SAVE YOU TIME, STRESS, AND MONEY.

As CMMG developed a model partially by supporting and innovating distinctive calibers inside the AR platform, the addition on the five.7x28mm Mk57 limited-barrel rifle below is probably going only the beginning.The projectiles would adhere or drag in there as well as follower would bind. As being the ProMags haven't any inward-projecting element a