CMMG Dissent Mk4 Pistol | .300 AAC BLK | 6.5″ | 30A0E33AB

The CMMG Dissent Mk4 is a compact AR-style pistol chambered in .300 AAC Blackout with a 6.5″ barrel and a 30-round magazine capacity. It uses CMMG’s Compact Action (buffer-less upper) and forward side charger to maximize portability while retaining AR-style controls and modularity. The pistol includes ambidextrous controls, a 5.5″ M-LOK handguard, an adjustable gas block, and a TriggerTech AR-D two-stage trigger for a light, repeatable break.

Suggested optic: a compact red-dot such as the Vortex Sparc AR pairs well for rapid target acquisition and co-witnessing with the Dissent’s Picatinny footprint while staying well under $1,000.

Product Specifications

• The caliber is .300 AAC Blackout.
• The action is Semi-Auto.
• The barrel length is 6.5 inches.
• The barrel twist is 1:7.
• The muzzle thread is 5/8-24.
• The handguard is a 5.5-inch M-LOK proprietary CMMG design.
• The optic footprint is PICATINNY.
• The magazine capacity is 30 rounds.
• The number of magazines included is 2.
• Ambidextrous safety is Yes.
• The frame material is Aluminum.
• The finish is Cerakote Armor Black.
• The trigger is a TriggerTech AR-D 2-Stage unit.
• The overall length is 14.7 inches.
• The UPC is 810097508040.

The Dissent Mk4 is aimed at shooters who need the capability of an AR platform in a highly compact, easily stowed package. Its Compact Action and forward side charger make it straightforward to run in right- or left-handed configurations, while the adjustable gas block helps tune the platform for supersonic or subsonic loads and suppressed use. If you value modularity and a concise footprint without sacrificing AR controls, the Mk4 Dissent is a practical choice for short-range precision work and field/stowage applications.

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