This is a basic overview to quickly identify a CMMG Mk4. The easiest way to remember the Mk4 is that it is our ‘Mil-Spec’ receiver or ‘M4’.
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5.56mm
If only you guys made handguns and/or shotguns too. 🇺🇸🫡
Mk4 is awesome, so flexible — have both a 9mm Banshee Mk4 and a 5.56 Resolute, outstanding firearms!
Boonies, carry on!