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

As CMMG built a brand partly by supporting and innovating exceptional calibers in the AR platform, the addition from the five.7x28mm Mk57 brief-barrel rifle listed here is likely only the start.The projectiles would stick or drag in there plus the follower would bind. Because the ProMags haven't any inward-projecting component and depart way more