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

The real difference can be an angled rear corner on Each individual on the locking lugs that matches up having an angled corner inside the barrel extension’s lugs. The rearwards drive of the fired spherical will cause the bolt to rotate alongside Those people angles until finally it unlocks and every thing cycles rearwards.ARMSLIST is NEVER linke