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

The primary difference is undoubtedly an angled rear corner on Each individual with the locking lugs that matches up with an angled corner while in the barrel extension’s lugs. The rearwards push in the fired spherical results in the bolt to rotate together These angles right until it unlocks and almost everything cycles rearwards.The projectiles