HELPING THE OTHERS REALIZE THE ADVANTAGES OF CMMG MK57

As CMMG developed a model partially by supporting and innovating special calibers in the AR platform, the addition of your five.7x28mm Mk57 brief-barrel rifle listed here is likely only the start.The projectiles would stick or drag in there as well as the follower would bind. Since the ProMags don't have any inward-projecting part and leave a lot