CMMG Dissent Pistol MK4 5.56 NATO

The CMMG Dissent Pistol MK4 is a compact, buffer-less AR-style pistol that uses CMMG's Compact Action and is chambered in .223 REM/5.56 NATO. It is designed for close-range use such as personal defense and range training where portability and maneuverability are priorities. The platform emphasizes a stowable profile and short overall length while retaining AR-style ergonomics.

The Dissent MK4 is built around a 6.50-inch free-floated barrel paired with a 5.5-inch M-LOK handguard for accessory attachment and modularity. The pistol is finished in Coyote Tan Cerakote and ships with an OEM black polymer grip, a zeroed drop-in single-stage trigger, and an optic-ready top rail. Controls are ambidextrous and the design replaces the traditional buffer-tube system with CMMG's Compact Action, improving compactness without adding external buffer hardware.

Key Specifications

• The action is Semi-Auto.
• The caliber is .223 REM/5.56 NATO.
• The barrel length is 6.50 inches, contributing to a compact overall profile.
• The barrel length range is 6" to 6.99".
• The capacity is 30 + 1.
• The grip material is Black Polymer.
• The overall length is 14.70 inches.
• The safety is Ambidextrous.
• The sights are Optic Ready.
• The weight is 4.60 lbs.

For a compact AR-style pistol for sale, the CMMG Dissent Pistol MK4 offers a short, stowable platform with modern ergonomics and a Coyote Tan Cerakote finish. Buy the CMMG Dissent Pistol MK4 .223 REM/5.56 NATO online today for a compact, maneuverable pistol option.