The CMMG Dissent MK4 in .300 Blackout sets a standard for compact AR platforms. Engineered for discreet carry and practical deployment, this AR pistol integrates CMMG’s patent-pending Compact Action, eliminating the traditional buffer tube. This design significantly reduces overall length, making the Dissent MK4 one of the shortest and most portable personal defense firearms available from CMMG.
Engineered Features:
- Caliber & Barrel: Chambered in .300 Blackout, it features a 6.5-inch free-floated barrel, optimized for compact ballistic performance.
- Handguard: A 5.5-inch M-LOK handguard provides ample space for mounting essential firearm accessories, including lights and lasers.
- Trigger System: Equipped with a CMMG Zeroed Drop-In Single Stage Trigger, this pistol offers a consistent and predictable pull, aiding in precise shot placement.
- Receiver & Finish: The receiver features a durable Tungsten Gray Cerakote finish, offering enhanced resistance to wear and corrosion.
- Adaptability: A Picatinny buffer adapter allows for flexible brace or stock (NFA regulations apply) attachment options, enhancing adaptability for various user preferences.
The Dissent MK4 maintains a 30+1 capacity, providing substantial on-board ammunition. Its compact size and robust construction make it a practical choice for home defense, vehicle carry, or efficient training at the shooting range. This pistol is designed for informed users who require a high-performance, compact AR solution.









