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

The difference is an angled rear corner on each of the locking lugs that matches up by having an angled corner in the barrel extension’s lugs. The rearwards press of your fired round will cause the bolt to rotate along People angles until finally it unlocks and everything cycles rearwards.ARMSLIST isn't involved with transactions amongst parties.