DEMO CMMG DISSENT Upper Receiver 9mm 6.5in 1-10 Twist 1/2x28 Thread Zeroed Linear Compensator Coyote Tan. and when can I buy just an upper?. Well ask no further because the 9mm DISSENT upper group is here Available with a 6.5 barrel this upper is compatible with Mk4/standard AR15 lower receivers (when used with CMMG 9AR conversion mags) as well as MkGs and Mk17 lower groups. All DISSENT uppers include a lower receiver 1913 picatinny rail end plate and choice of Cerakote finish. Its no secret that pistol stabilizing braces have been a target for scrutiny over the years and those that enjoy building their own AR pistols have wondered what will come out of all the uncertainty. DISSENT is our answer. Utilizing our patent pending Compact Action and Radial Delayed Blowback technology with fixed ejector 9mm DISSENT upper group houses the entire action and recoil assembly in the upper receiver resulting in less bulk and length than traditional AR pistols. The forward non-reciprocating side charger allows for quick bolt operation without coming off target. DISSENT Upper groups include a 1913 Picatinny rail end plate to use in place of the lower receiver buffer tube. Specifications for CMMG DISSENT 9mm 6.5in Upper Receiver: Manufacturer: CMMG Caliber: 9mm Luger Barrel Length: 6.5 in Barrel Twist Rate: 1-10 Firearms Threads Per Inch: 1/2x28 Muzzle Device: Zeroed Linear Compensator Finish: Cerakote Fabric/Material: Aluminum Gun Rail: M-LOK Gun Make: CMMG Magazine Included: No Package Contents: CMMG DISSENT 9mm 6.5in Upper Receiver CMMG 94B6829-CT: DISSENT Upper Receiver 9mm 6.5in 1-10 Twist 1/2x28 Thread Zeroed Linear Compensator Coyote Tan