A SECRET WEAPON FOR CMMG MK57

A Secret Weapon For cmmg mk57

When the bolt carrier moves forward, the bolt rotates and locks the lugs in front of the supporting lug abutments. If the team moves rearward, the cam pin forces the bolt to rotate and unlock in the barrel extension.The projectiles would stick or drag in there and the follower would bind. As being the ProMags have no inward-projecting aspect and go

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