CMMG DISSENT MK4 6mm ARC 16.1 inches MDBRZ Carbine

The CMMG DISSENT MK4 6mm ARC 16.1 inches MDBRZ carbine represents a modern platform purpose-built for shooters seeking efficient intermediate cartridge performance without the footprint or recoil of larger rifle rounds. Designed for tactical applications, hunting, and precision rifle disciplines, this carbine bridges the gap between 5.56 NATO and larger magnum cartridges, delivering the ballistic efficiency of 6mm ARC with the ergonomics of a short-stroke piston system. The 16.1-inch barrel length provides velocity and handling that balances mobility with effective range, making it suitable for law enforcement, military training, and civilian tactical use where rapid target engagement and reduced collateral effects are priorities.

Built on CMMG's proven MK4 platform, this carbine features a direct-impingement or piston-driven action optimized for the 6mm ARC cartridge, which delivers superior ballistic coefficient and velocity retention compared to 5.56 NATO at comparable distances. The MDBRZ finish—a corrosion-resistant mil-spec coating—ensures durability in harsh field conditions while maintaining a professional tactical appearance. At 9.36 pounds unloaded, the carbine remains controllable for extended operations while providing sufficient mass for recoil management and sight stability, critical factors in both defensive scenarios and competitive precision shooting environments.

This platform benefits law enforcement agencies, military units, and serious civilian shooters who demand ammunition efficiency and extended effective range without magnum recoil impulse. The 6mm ARC cartridge has gained significant adoption in precision rifle competitions and tactical training programs due to its flat trajectory, wind-bucking performance, and reduced noise signature compared to larger calibers. The DISSENT MK4 accepts standard AR-pattern furniture and optic mounts, ensuring compatibility with existing tactical accessories, quick-detach slings, and weapon lights commonly employed in professional and recreational applications.