| Platform | Mk4 |
| Caliber | 5.56x45mm |
| Operating System | Compact Action-Direct Impingement |
| Barrel Length | 6.5 |
| Barrel Twist | 1:7 |
| Barrel Contour | MT |
| Barrel Material | 4140CM, SBN |
| Barrel Twist | 1:7 |
| Muzzle Device | CMMG ZEROED Linear Compensator |
| Muzzle Thread | 1/2 x 28 |
| Gas Port Location | Pistol |
| Gas Block | Adjustable 0.750" |
| 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 | TriggerTech AR-D 2-Stage |
| Trigger Guard | CMMG ZEROED Trigger Guard |
| Safety Selector | CMMG ZEROED 60/90 Degree |
| Magazine | (2) Magpul 30rd PMAG |
| Weight | 4.8 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, 5.56MM, 6.5", 20th Anniversary
The next evolution of the AR15. Chambered in the iconic 5.56x45mm cartridge, the DISSENT™ is unlike any other AR15 Personal Defense Weapon, ditching the buffer tube and traditional AR recoil system in favor of our patent-pending Compact Action.
In addition to the revolutionary Compact Action that shrinks this AR pistol’s footprint significantly, the DISSENT features a forward non-reciprocating side charger that allows you to charge the weapon without coming off target.
Cerakoted in a distinct finish called Northern Lights, this Cerakote is a stunning color-changing navy blue that transforms into a greenish teal with glistening gold metallics. Each Northern Lights anniversary firearm is also laser engraved to commemorate the 20 years of CMMG. The sleek sided rear of the DISSENT features a 1913 picatinny rail that’s ready to attach the brace or stock* that fits you best.
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.