The CMMG Dissent MK4 is a compact AR-style pistol built around CMMG’s Compact Action, which houses the recoil system in the upper receiver to eliminate the buffer tube. Designed for personal defense and compact-range use, it emphasizes portability, ambidextrous controls, and modularity in a Cerakote Coyote Tan finish. Its configuration suits users who need a highly stowable AR platform for range training and close-quarters scenarios where legal and safe use applies.
Key Specifications
- The caliber is .300 AAC Blackout.
- The barrel measures 6.50 inches for a compact profile.
- The unloaded weight is approximately 4.60 lbs.
- The overall length is 14.70 inches.
- The standard magazine capacity is 30+1 rounds.
- The handguard is a 5.5-inch proprietary M-LOK style for accessory mounting.
- The action is Semi-Auto using CMMG’s Compact Action direct impingement system.
- The exterior finish is Cerakote in Coyote Tan.
The Dissent MK4 pairs a short free-floated barrel and a buffer-less Compact Action to reduce overall length while retaining AR-style controls, including a non-reciprocating side charger and ambidextrous safety. It ships configured with an ergonomic polymer grip, a TriggerTech AR-D two-stage trigger, and a CMMG ZEROED linear compensator with 5/8×24 muzzle threads, supporting modular setup and common accessory mounting. Its two included magazines and compact footprint make it practical for structured range use and compact defensive setups where permitted by law. Note: this model ships with a 30+1 magazine; several U.S. jurisdictions restrict magazine capacity to 10 rounds — Hawaii, California, Connecticut, District of Columbia, Illinois, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Washington, and Colorado.
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