| Platform | Mk57 |
| 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 | Mk57 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 | Integrated |
| Safety Selector | CMMG ZEROED 60/90 Degree |
| Magazine | (2) 20rd Promag |
| Weight | 4.9 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, Mk57, 5.7x28MM, 6.5", 20th Anniversary
Spend any time researching PDW (personal defense weapon) calibers and you are bound to come across a mention or two of the 5.7x28mm cartridge. Although small and lightweight, the 5.7 round was originally designed to maximize carrying capacity while still delivering rifle-like ballistic performance in a variety of weapon platforms.
Now the DISSENT® combines the patent-pending Compact Action along with the CMMG® Radial Delayed Blowback™ operating system and Mk57™ platform lower to give shooters something hard to beat. A PDW that accepts FN®* Five-seveN®* pattern pistol magazines for the ultimate degree of cross compatibility.
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. Every DISSENT comes with a 5.5” M-LOK® handguard and a 1913 picatinny rail at the butt of the gun to attach the pistol brace or stock^ of your choice so each DISSENT can be tailored to suit your style.
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.
*FN HERSTAL®, Five-seveN®, and FN Five-seven® are registered trademarks of FN Herstal SA Societe Anonyme. CMMG® has no affiliation with FN Herstal, and CMMG® products are not approved or endorsed by FN Herstal.