As CMMG built a brand name in part by supporting and innovating exclusive calibers during the AR System, the addition in the five.7x28mm Mk57 small-barrel rifle here is likely only the beginning.ARMSLIST is rarely involved in transactions amongst get-togethers. Evaluation our privacy coverage and conditions of use for moreWhen the Mk57 locks back

The main difference is undoubtedly an angled rear corner on Every of the locking lugs that matches up using an angled corner inside the barrel extension’s lugs. The rearwards drive of the fired round results in the bolt to rotate alongside Individuals angles till it unlocks and anything cycles rearwards.The projectiles would adhere or drag in the