CMMG 55A520BCT Dissent BR4 5.56 NATO 16.1" 11-Round Threaded Barrel Rifle

The CMMG 55A520BCT Dissent BR4 California Compliant 5.56 NATO rifle delivers a purpose-built platform for shooters operating under modern firearms regulations while maintaining field-proven reliability. Chambered in 5.56×45mm NATO with a 16.10-inch black nitride threaded barrel, this rifle balances velocity retention with maneuverability—critical factors for precision shooting at intermediate ranges and tactical applications where barrel length significantly impacts ballistic performance.

The rifle features a Coyote Tan Cerakote finish on the Picatinny rail aluminum receiver, providing corrosion resistance and professional aesthetics essential for duty and training environments. The magnesium/aluminum receiver construction keeps overall weight to 12.4 pounds, supporting extended shooting sessions and rapid target transitions. A Magpul SGA black synthetic stock provides secure cheek weld and ergonomic support, while the included two Magpul 10-round PMAG magazines establish magazine compatibility with standard AR-pattern platforms. The black nitride barrel finish resists salt spray and field oxidation—a critical durability factor for operators in challenging environments.

This rifle addresses the needs of California-compliant shooters, law enforcement agencies, military training programs, and precision rifle enthusiasts who require a documented 5.56 NATO platform. The threaded barrel allows mounting of sound suppressors or muzzle devices where legally authorized, expanding tactical flexibility. The Dissent BR4 California Compliant configuration removes common compliance friction points, making it a streamlined choice for regulated jurisdictions. Intended users include patrol officers, precision marksmen, range competitors, and hunters pursuing medium game at extended ranges where 5.56 NATO energy retention remains effective.