NOT KNOWN FACTS ABOUT CMMG MK57

As CMMG built a model in part by supporting and innovating exceptional calibers during the AR platform, the addition on the five.7x28mm Mk57 short-barrel rifle listed here is likely only the start.The projectiles would adhere or drag in there as well as the follower would bind. As the ProMags don't have any inward-projecting section and depart muc