CMMG Mk4 9mm Resolute Upper Group Receiver 16.1in Coyote Tan 99BE6B6-CT. We have you covered Utilizing our Radial Delayed Blowback operating system not only does this upper create one of the softest shooting 9mm PCCs with style that is unmistakably...
CMMG Mk4 9mm Resolute Upper Group Receiver 16.1in Coyote Tan 99BE6B6-CT. We have you covered Utilizing our Radial Delayed Blowback operating system not only does this upper create one of the softest shooting 9mm PCCs with style that is unmistakably...