The CMMG Dissent MK4 pairs an AR-style platform with the .338 ARC cartridge to provide a compact, modular option for shooters who want large-bore performance in a portable package. It uses CMMG’s patent-pending Compact Action to house the recoil system in the upper receiver, eliminating the need for a buffer tube and improving maneuverability. The configuration includes a 10.50″ threaded barrel and a 9.60″ M-LOK handguard for accessory mounting and compact handling.
Key Specifications
- Chambered in .338 ARC for large-bore AR performance.
- Magazine capacity is 10+1 rounds in standard configuration.
- The barrel measures 10.50 inches and is threaded.
- The overall length is 18.70 inches for a compact footprint.
- Weighs 4.90 lbs for a balance of stability and portability.
- Built as a semi-automatic action for familiar AR operation.
- Equipped with a 9.60 inch M-LOK handguard for mounting accessories.
- Receiver and components feature a Cerakote (black) finish.
- Includes a polymer stock and a CMMG Zeroed grip for ergonomics.
- Ships with one magazine to get started out of the box.
The Dissent MK4 is designed for shooters who value portability, modularity, and the adaptability of the AR platform in a compact package. Its integrated Compact Action and threaded short barrel make it well suited to applications where a smaller, easier-to-handle large-bore pistol is desirable, while familiar controls and M-LOK compatibility support a range of configurations and accessories.
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