The CMMG DISSENT BR4 is a 9mm carbine that combines traditional rifle ergonomics with the DISSENT series’ radial delayed blowback system and a fixed ejector. This CA-compliant variant ships with a threaded Black Nitride barrel and a Picatinny-rail aluminum receiver finished in Coyote Tan Cerakote. It accepts CMMG 9mm conversion magazines and is built around familiar AR-style controls for straightforward operation.
Key Specifications
- The manufacturer is CMMG.
- The model is 94AC80FCT Dissent BR4.
- The platform is listed as CA Compliant.
- The caliber is 9mm Luger.
- The capacity is 10+1.
- The barrel measures 16.10″ Black Nitride Threaded Barrel.
- The action uses fixed ejector Radial Delayed Blowback technology.
- The receiver is Coyote Tan Cerakote Picatinny Rail Aluminum.
- The stock is a Magpul SGA Black Polymer Stock.
- Magazine compatibility is listed as uses CMMG 9mm conversion magazines; BR4 lower will accept other STANAG pattern magazines with compatible uppers.
Purpose-built for shooters who prefer the handling of a rifle with pistol-caliber simplicity, the DISSENT BR4 delivers predictable operation and modular compatibility in a California-compliant package. Its threaded Black Nitride barrel, Picatinny-equipped receiver, and Magpul SGA stock make it suitable for a range of practical applications where reliable, magazine-fed 9mm performance is desired.
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.
Related Videos:




