The new Mk57 Series is turning heads as one of the lightest-recoiling pistol carbines ever! CMMG has just announced more big news! They recently released a new line of AR pistols and short-barreled rifles chambered in FN 5.7x28mm and it has gun nuts going wild. Using the CMMG patent-pending “Radial Delayed Blowback” operating system, the
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