| Platform | Mk4 |
| Caliber | 5.7x28mm |
| Operating System | Compact Action-Radial Delayed Blowback |
| Barrel Length | 6.5 |
| Barrel Twist | 1:9 |
| Barrel Contour | MT |
| Barrel Material | 4140CM, SBN |
| Barrel Twist | 1:9 |
| Muzzle Device | CMMG ZEROED Linear Compensator |
| Muzzle Thread | 1/2 x 28 |
| Gas Port Location | N/A |
| Gas Block | N/A |
| Upper Receiver | DISSENT 7075 T6 Aluminum |
| Lower Receiver | Mk4 Forged 7075 T6 Aluminum |
| Hand Guard | CMMG 5.5" Proprietary |
| Finish | Cerakote |
| Charging Handle | DISSENT Side Charger - Left |
| Pistol Grip | CMMG ZEROED Pistol Grip |
| Buffer Type | N/A |
| Receiver Extension | 1913 Picatinny Rail End Cap |
| Trigger Type | ZEROED Drop-In Single Stage |
| Trigger Guard | CMMG ZEROED Trigger Guard |
| Safety Selector | CMMG ZEROED 60/90 Degree |
| Magazine | CMMG 32rd |
| Weight | 4.6 lbs |
| Length | 15.7" |
Please Allow 15-30 Days To Process Your Order.
State/local restrictions may apply in CA, CO, CT, DE, DC, HI, IL, MD, MA, MI, NJ, NY, or WA. Customers must review our Firearms Shipping Policy prior to ordering.
Firearms with attached pistol brace. Please confirm your FFL is accepting transfers for pistol brace equipped firearms prior to ordering.
Pistol, DISSENT, Mk4, 5.7x28MM, 6.5"
Challenge convention, the CMMG® DISSENT™ in 5.7x28mm is here to change the way you look at Personal Defense Weapons. One of the biggest challenges AR15 platform PDWs face is the buffer tube, a necessity that always adds to the overall footprint until now. The DISSENT eliminates the need entirely by employing our patent-pending Compact Action that also works hand in hand with our renowned Radial Delayed Blowback™ operating system.
In addition to containing the entire action and recoil system in a more compact package, every DISSENT features a forward non-reciprocating side charger, interchangeable from left to right, allowing shooters to charge the weapon while staying focused on target.
Available in your choice of custom Cerakote finish, every DISSENT comes with a 5” M-LOK® handguard and a 1913 picatinny rail at the rear to attach the pistol brace or stock* of your choice so you can make the DISSENT fit you.
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
Each DISSENT is shipped in pistol configuration, adding a stock will make your DISSENT an SBR and subject to NFA rules. Learn more about NFA rules.
~Firearms shipping to states with magazine capacity restrictions will only ship with 10rd magazines in place of standard capacity magazines. CMMG does not address any other state compliancy requirements for further restricted states.