DETAILS, FICTION AND CMMG MK57

As CMMG designed a manufacturer in part by supporting and innovating special calibers while in the AR System, the addition of the 5.7x28mm Mk57 quick-barrel rifle below is probably going only the beginning.The projectiles would stick or drag in there as well as follower would bind. As being the ProMags have no inward-projecting aspect and leave wa