CMMG 60AA90C-MB DISSENT MK4 6mm ARC Rifle

The CMMG 60AA90C-MB DISSENT MK4 6MMARC is a modern intermediate-caliber rifle engineered for operators and serious shooters who demand precision in a compact platform. Built on the AR-15 architecture, this 16.1-inch barrel rifle delivers the ballistic efficiency of 6mm ARC in a maneuverable form factor suitable for tactical training, competitive shooting, and field applications where controlled recoil and efficient terminal performance matter.

The 16.1-inch barrel strikes an operational balance—long enough to generate meaningful velocity from 6mm ARC ammunition while keeping overall rifle length manageable in vehicles, buildings, and transitional spaces. At 11.2 lbs unloaded, the rifle remains point-able during extended shooting sessions without fatigue. The muzzle brake installation reduces felt recoil, allowing faster target reacquisition and more accurate follow-up shots, critical in training and field scenarios where speed and precision overlap.

This platform is built for shooters who understand 6mm ARC's advantages: flatter trajectory and less wind drift than 5.56 NATO, lower recoil impulse than larger calibers, and excellent accuracy at extended range. Law enforcement and military personnel evaluating intermediate cartridges, precision rifle competitors, and dedicated range shooters pursuing sub-MOA performance will find the DISSENT MK4 a purpose-built solution. CMMG's reputation for consistent quality in modular rifle platforms supports confidence in reliability across training cycles and operational use.