CMMG's Dissent MK4 in 300 Blackout features a 16.1" barrel, side-folding stock with adjustable length of pull, and adjustable gas block for both subsonic and supersonic loads.
The 300 Blackout cartridge has earned its place as one of the most adaptable rounds in modern shooting. Whether you're running subsonic ammunition through a suppressor, pushing supersonic loads for hunting, or simply punching paper at the range, this cartridge delivers. The Dissent MK4 with its 16.1" barrel is purpose-built to maximize that versatility without sacrificing performance.
Adjustable Gas Block The standout feature of every 300 Blackout Dissent is the adjustable gas block. This allows you to fine-tune the rifle's gas system to match your ammunition choice—whether you're running subsonic or supersonic loads. This level of control ensures reliable cycling and reduces unnecessary wear on the system.
Ergonomic Design
This rifle recognizes that 300 Blackout shooters have different needs. Some want a suppressed, subsonic platform for quiet operation. Others prefer the velocity of supersonic ammunition for hunting applications. The Dissent MK4 adapts to your mission, not the other way around. The adjustable gas block puts you in control, ensuring the rifle performs exactly as you need it to perform.