CMMG Dissent MK4 300 Blackout 10.5" Barrel Pistol w/ Muzzle Brake

The CMMG Dissent MK4 delivers compact firepower in 300 Blackout with innovative radial delayed blowback operation. This 10.5-inch barrel configuration provides optimal velocity for subsonic and supersonic ammunition while maintaining exceptional reliability in a pistol platform.

What Makes This Different

CMMG's radial delayed blowback system eliminates the need for a buffer tube, creating an exceptionally compact profile compared to traditional AR-platform pistols. The system cycles both supersonic and subsonic 300 Blackout ammunition reliably without adjustment. This technology reduces felt recoil by approximately 30% compared to direct impingement systems while maintaining consistent ejection patterns.

Key Features

• Radial delayed blowback operation - no buffer tube required
• 10.5-inch 4140 chrome moly steel barrel with 1:7 twist rate
• Integrated muzzle brake reduces muzzle rise and flash signature
• Ambidextrous controls including safety selector and magazine release
• M-LOK compatible handguard with full-length top rail
• Standard AR-15 trigger group compatibility
• Accepts standard AR-15 magazines and accessories

The Dissent excels in close-quarters applications where maneuverability matters most. Law enforcement agencies report consistent performance in vehicle operations and confined spaces. The compact design maintains accuracy out to 200 yards with quality ammunition while offering rapid follow-up shots. Weather-sealed components resist moisture and debris infiltration during extended use.

Technical Specs

• Caliber: 300 AAC Blackout
• Barrel Length: 10.5 inches
• Overall Length: 26.5 inches
• Weight: 5.8 pounds (unloaded)
• Twist Rate: 1:7 inches
• Operating System: Radial delayed blowback
• Magazine Capacity: Accepts standard AR-15 magazines
• Finish: Cerakote armor black
• Manufactured: USA

The Dissent MK4 represents proven engineering adapted for modern applications. CMMG's manufacturing standards ensure consistent performance across temperature extremes and ammunition types. This platform offers shooters a reliable alternative to traditional pistol-caliber carbines with superior ballistic performance.