CMMG 30A5C0FCT Dissent BR4 .300 Blackout 14.5" 11-Round Rifle

The CMMG 30A5C0FCT Dissent BR4 .300 Blackout 14.5" rifle delivers purpose-built versatility for operators and shooters who demand suppressed-fire capability without sacrificing terminal performance. Chambered in .300 Blackout, this platform excels in close-quarters environments where subsonic ammunition and sound suppression are operational requirements. Whether deployed in law enforcement tactical roles, military training scenarios, or civilian defensive applications, the Dissent BR4 bridges the gap between full-power rifle ballistics and pistol-caliber limitations inherent in shorter platforms.

The 14.5-inch barrel length optimizes the .300 Blackout cartridge's inherent advantage: reliable subsonic velocities that cycle suppressed while maintaining sufficient muzzle energy for duty-grade terminal ballistics. The Dissent BR4 platform incorporates CMMG's refined direct-impingement operating system, engineered for suppressed-fire reliability without the added complexity or maintenance burden of piston-driven alternatives. An 11-round magazine capacity balances capacity against compact profile, critical when operating in vehicles, buildings, or other confined spaces where extended magazines create handling penalties. At 10.45 pounds, the rifle maintains manageable weight during extended operations while the compact 41-inch overall length facilitates breaching, CQB transitions, and rapid deployment in dynamic scenarios.

Law enforcement tactical teams, military special operations personnel, and trained civilian operators recognize the .300 Blackout Dissent BR4 as a specialized tool for precision applications where noise and flash signature matter operationally. The 14.5-inch barrel easily accommodates standard .300 Blackout suppressors threaded at common pitches, enabling sound reduction that preserves hearing and operational security in high-stress environments. This rifle pairs seamlessly with quality red-dot optics, PEQ-15 laser designators, and other modular accessories mounted to picatinny rails. Magazine compatibility follows standard CMMG .300 Blackout specifications; verify your ammunition supply before deployment to ensure consistent subsonic or supersonic loads match your tactical profile.