The CMMG Dissent MK4 9mm Luger AR Pistol represents a precision-engineered integration of the AR-15 platform’s inherent modularity with a purpose-built 9mm operating system. Designed for discerning firearm enthusiasts and competitive shooters, this pistol provides a compact and adaptable solution without compromising performance or reliability.
Key Features
Modular AR-15 Platform Integration
The Dissent MK4 utilizes the foundational AR-15 architecture, optimizing it for 9mm Luger operation. It is compatible with CMMG 9 AR Conversion magazines, which replicate the form factor of 5.56mm magazines for consistent manual of arms and reliable double-stack feeding. The integral 5.50-inch M-LOK handguard facilitates secure attachment of mission-essential accessories. A 1913 Picatinny brace adapter at the receiver end plate offers versatile attachment points for pistol braces, stocks (where permitted by law), or sling systems, enhancing its adaptable utility across various operational requirements. Its design maintains broad lower receiver compatibility.
CMMG Radial Delayed Blowback Compact Action
Central to the Dissent MK4’s performance is the proprietary CMMG 9mm Radial Delayed Blowback Compact Action. This system specifically mitigates the operational challenges posed by the broad spectrum of 9mm ammunition, from supersonic to subsonic loads. By employing a fixed ejector within the upper receiver and a lighter bolt carrier group, the Radial Delayed Blowback mechanism effectively reduces felt recoil and optimizes cycling consistency across diverse ammunition types, ensuring robust and reliable function without compromise.
Enhanced Ergonomics and Control
Operational efficiency is a core design principle. The non-reciprocating Left Side Charging Handle permits rapid, intuitive manipulation of the bolt without breaking a shooting grip or altering the sight picture. Muzzle control is augmented by the integrated CMMG Zeroed Linear Compensator, designed to direct gasses forward, reducing muzzle rise and concussion to the shooter. Further enhancing control and shot placement, the CMMG Zeroed Drop-In Single Stage Trigger provides a clean, consistent break for precise shot execution.
Robust Construction and Finish
Constructed for durability and consistent field performance, the Dissent MK4 features a hard-coat anodized black finish, providing corrosion resistance and a low-visibility profile suitable for demanding applications.
Technical Specifications
- Model: CMMG Dissent MK4 94A6867AB
- Caliber: 9mm Luger
- Capacity: 33+1 Rounds
- Barrel Length: 6.50 inches
- Handguard: 5.50-inch M-LOK
- Finish: Black
- Brace Adapter: Picatinny
- Charging Handle: Left Side, Non-Reciprocating
- Muzzle Device: CMMG Zeroed Linear Compensator
- Trigger: CMMG Zeroed Drop-In Single Stage









