The CMMG Dissent MK4 is an AR-style 9mm pistol built on CMMG’s Mk4 platform with a 6.50 in barrel and modular accessory options. It uses a compact radial delayed blowback operating system designed for reliable performance across a wide range of 9mm loads. The design incorporates a left-side non-reciprocating side charger, an M-LOK handguard, and a 1913 Picatinny rail end cap for mounting braces or stocks where legal.
Key Specifications
- The caliber is 9mm.
- The barrel length is 6.50 in.
- The operating system is Compact Action – Radial Delayed Blowback.
- The barrel material is 4140CM SBN.
- The muzzle device is a CMMG ZEROED Linear Compensator.
- The upper receiver material is DISSENT 9mm 7075 T6 Aluminum.
- The lower receiver material is Mk4 Forged 7075 T6 Aluminum.
- The handguard is a 5.50 in M-LOK CMMG proprietary design.
- The charging handle is a DISSENT Side Charger – Left.
- The trigger is a TriggerTech AR-D 2-stage.
Well-suited for range training, pistol-caliber AR applications, and modular firearms builds, the Dissent MK4 blends a compact 6.50 in barrel and AR-style ergonomics with components intended for reliable function across varied 9mm loadings. Its M-LOK handguard and 1913 Picatinny end cap provide mounting flexibility while the radial delayed blowback system and matched trigger support consistent, controllable shots for shooters who prioritize mechanical reliability and modularity.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
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