LITTLE KNOWN FACTS ABOUT CMMG MK57.

As CMMG built a brand name partly by supporting and innovating one of a kind calibers during the AR System, the addition of the 5.7x28mm Mk57 limited-barrel rifle in this article is likely only the beginning.ARMSLIST is NEVER involved with transactions concerning events. Review our privateness policy and phrases of use for moreJeremy is TTAG's Dep