The CMMG Dissent MK4: Modern 9mm Pistol Design

The Dissent MK4 represents a thoughtful evolution in 9mm pistol design, built on the proven AR-15 platform. CMMG has engineered this compact 9mm to deliver genuine modularity and reliability in a package that rewards both experienced shooters and those new to the platform.

Key Features

  • Caliber & Capacity: 9mm Luger with 33-round magazine capacity
  • Barrel: 10.5" with zeroed linear compensator for reduced muzzle rise
  • Receiver: Midnight Bronze finish upper and lower
  • Charging Handle: Left-side non-reciprocating design for quick operation while maintaining sight picture
  • Handguard: 9.6" M-LOK rail system for clean, modular accessory mounting
  • Trigger: TriggerTech trigger for crisp, predictable breaks
  • Brace Compatibility: Picatinny rail end plate accepts braces, slings, or stocks

Engineering Excellence

The 9mm Radial Delayed Blowback Compact Action addresses the unique demands of 9mm ammunition. This system uses a fixed ejector in the upper receiver and features a lighter bolt carrier group, resulting in reduced felt recoil and consistent performance across a wide range of ammunition types—from supersonic to subsonic loads.

Magazine System

The Dissent uses CMMG 9mm AR conversion magazines that maintain the familiar profile of standard 5.56mm magazines. This means your manual of arms remains consistent, and the true double-stack design ensures fast, reliable loading.

Why Choose the Dissent MK4

This is a purpose-built 9mm platform that doesn't compromise on modularity or performance. Whether you're exploring 9mm shooting or seeking a dedicated compact pistol, the Dissent MK4 delivers the reliability and adaptability that define quality firearms design.

Attributes

Action: Semi-Automatic
Barrel Length: 10.5"
Caliber: 9mm Luger
Capacity: 33+1
Grips: Black Polymer
Overall Length: 18.70"
Safety: Ambidextrous
Sights: Optic Ready
Weight Range: 4-4.99 Lbs