5 SIMPLE TECHNIQUES FOR CMMG MK57

As CMMG built a brand partly by supporting and innovating exceptional calibers in the AR platform, the addition from the 5.7x28mm Mk57 small-barrel rifle here is likely only the beginning.The projectiles would stick or drag in there along with the follower would bind. As the ProMags don't have any inward-projecting part and depart much more cleara