CMMG Dissent MK4 300 Blackout 10.50" 30+1 Semi-Auto Pistol

The CMMG Dissent MK4 is a compact bufferless AR-style pistol chambered in 300 Blackout. Built around CMMG's proprietary compact action, the Dissent eliminates the traditional AR-15 buffer tube while retaining familiar AR-15 ergonomics, ambidextrous controls, and standard magazine compatibility, packing .30-caliber performance into one of the most portable pistol platforms on the market.

This configuration pairs a 10.50" threaded barrel finished in black nitride with a 5.50" M-LOK handguard for accessory mounting. The receiver is machined from aluminum and finished in Black Armor Cerakote, with a full-length Picatinny rail along the top for direct optics mounting. Iron sights are not included, allowing end-users to configure their preferred red dot, prism, or magnifier setup.

CMMG's signature forward non-reciprocating side charger keeps the charging handle stationary and out of the firing hand's path. The lower is outfitted with a CMMG Zeroed pistol grip and a CMMG Zeroed 60/90 degree ambidextrous safety selector, both finished in black. The action is rated for 30+1 capacity with a standard AR-pattern detachable magazine, taking full advantage of the .300 BLK cartridge's supersonic and subsonic load flexibility.

Weighing 4.80 lbs with an overall length of 15.70", the Dissent MK4 is well-suited to home defense, recreational range use, and lightweight transport. It is backed by CMMG's reputation for quality American manufacturing and a robust aftermarket of compatible parts and accessories.

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