The real difference is surely an angled rear corner on Just about every in the locking lugs that matches up by having an angled corner in the barrel extension’s lugs. The rearwards drive on the fired spherical triggers the bolt to rotate along Those people angles right up until it unlocks and almost everything cycles rearwards.ARMSLIST is rarely

As CMMG built a brand name partly by supporting and innovating exceptional calibers within the AR System, the addition from the five.7x28mm Mk57 limited-barrel rifle here is likely only the beginning.ARMSLIST is NEVER involved with transactions between events. Evaluate our privacy coverage and terms of use for moreJeremy is TTAG's Deputy Editor, D