Cmmg Dissent Br4 5.56 16.1" 10rd Ab

The CMMG Dissent BR4 5.56 16.1" is a semi-automatic rifle purpose-built for operators, LEOs, and serious enthusiasts who demand a modern platform with practical ergonomics and modularity. Chambered in 5.56 NATO, this compact rifle delivers the ballistic performance of an intermediate cartridge in a carbine-length package optimized for patrol duty, training, and close-quarters engagement.

Key specifications include a 16.1-inch barrel with 1/2x28 threaded muzzle for sound suppressors and muzzle devices, paired with a zeroed muzzle brake for recoil management. The rifle features CMMG's reversible Dissent side-charging handle—a game-changer for left-hand shooters and those running optics on the upper receiver without obstruction. The 15-inch M-LOK handguard provides ample real estate for accessory mounting (lights, lasers, vertical grips), while the Magpul SGA stock delivers a robust buttstock interface. The drop-in single-stage trigger offers clean break characteristics suitable for precision work, complemented by a reversible cross-bolt safety. Armor Black Cerakote finish resists corrosion in field environments. The rifle ships with 10 rounds and two magazines, meeting most state compliance requirements.

This platform suits law enforcement transition teams, military train-up, civilian defensive carbine users, and competition shooters who prioritize ergonomic controls and suppressor-ready barrel threading. The side-charging design eliminates traditional charging handle interference, a practical advantage when running optics-heavy setups or transitioning between shooting positions. The 5.56 NATO cartridge balances velocity, barrier penetration, and controllability in intermediate-range engagements—the standard for modern rifle platforms across professional and civilian sectors.

CMMG positions the Dissent BR4 as a purpose-engineered alternative to legacy direct-impingement designs, prioritizing user-configurable ergonomics and forward-thinking control schemes. The reversible safety and ambidextrous charge handle address real operational feedback from the field, making this carbine accessible to shooters across the spectrum of experience and physical capability.