CMMG 55A830B-AB Dissent BR4 5.56 NATO 16.1" 11-Round Cerakote Rifle

The CMMG 55A830B-AB Dissent BR4 5.56 NATO rifle is a purpose-built modern sporting rifle engineered for shooters who demand reliability, ergonomics, and modularity in a compact package. Chambered in 5.56 NATO with a 16.1-inch barrel, this rifle bridges the gap between tactical carbines and practical home-defense platforms, making it suitable for law enforcement training, civilian sport shooting, and duty applications. The Dissent platform represents CMMG's commitment to delivering AR-pattern performance with refined controls and user-focused design that resonates with both experienced operators and shooters entering the tactical rifle space.

Built on CMMG's proprietary AR-15 architecture, the Dissent BR4 incorporates a mid-length gas system optimized for the 16.1-inch barrel length, delivering consistent cycling and reduced recoil impulse compared to carbine-length systems. The rifle features an 11-round magazine capacity, compliant with restricted jurisdictions while maintaining practical firepower for defensive scenarios. Finished in durable Cerakote coating, the rifle resists corrosion and abrasion in harsh field conditions—critical for rifles seeing regular use in training or operational environments. The compact 39.6-inch overall length makes the platform maneuverable in confined spaces such as vehicles, structures, or dense tactical scenarios, while the 11.8-pound weight distribution allows extended shooting sessions without fatigue.

Law enforcement instructors, military personnel, and serious civilian shooters benefit from the Dissent BR4's proven ergonomics and aftermarket compatibility with standard AR-15 components. The modular design supports optic mounting, rail systems, and stock configurations, allowing operators to tailor the rifle to specific mission requirements. Shooters will appreciate the balance of the 5.56 NATO cartridge—offering sufficient velocity and terminal performance across common defensive ranges while maintaining controllability for rapid follow-up shots. This rifle performs equally well in qualification courses, tactical competitions, and duty-ready configurations, making it a versatile addition to any serious shooter's inventory.