| Caliber | 9mm |
| Operating System | Compact Action-Radial Delayed Blowback |
| Barrel Length | 6.5 |
| Barrel Twist | 1:10 |
| Barrel Contour | MT |
| Barrel Material | 4140CM, SBN |
| Barrel Twist | 1:10 |
| Muzzle Device | CMMG ZEROED Linear Compensator |
| Muzzle Thread | 1/2 x 28 |
| Gas Port Location | N/A |
| Gas Block | N/A |
| Upper Receiver | DISSENT 9mm 7075 T6 Aluminum |
| Finish | Cerakote |
| Charging Handle | DISSENT Side Charger - Left |
| Buffer Type | N/A |
| Receiver Extension | 1913 Picatinny Rail End Cap |
Due to high demand and supply chain issues affecting many industries, some of our parts and accessories may be on backorder and have an extended lead time. Items currently on backorder can still be purchased and can typically be shipped within 25 business days.
UPPER GROUP, DISSENT, 9MM, 6.5"
From day one following the release of the DISSENT®, shooters started asking “where’s the 9mm?” 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.
It’s 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.
Lifetime Quality Guarantee
We aim to please, that’s why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.
*NFA Rules May Apply
6.5" DISSENT upper groups are made to be used in a pistol configuration, using a pistol upper in conjunction with a stock or stabilizing brace on the lower receiver may make your DISSENT and SBR and subject to NFA rules. Learn more about NFA rules.