CMMG Banshee Mk4 .300 Blackout 8" 31-Round Threaded Barrel AR Pistol

The CMMG Banshee Mk4 .300 Blackout 8" 31-Round Threaded Barrel AR Pistol represents a purpose-built platform designed for shooters who demand compact firepower without compromise. Built on the proven AR pistol architecture, this platform delivers the terminal ballistics of .300 Blackout in a highly maneuverable 8-inch barrel configuration ideal for vehicle operations, confined spaces, and tactical applications where length-of-pull matters. Whether for home defense, specialized law enforcement duty, or precision shooting in tight quarters, the Banshee Mk4 bridges the gap between full-size rifles and traditional handguns.

The 8-inch threaded barrel enables both supersonic and subsonic ammunition selection, a critical advantage for .300 Blackout shooters seeking velocity optimization or noise-signature reduction when paired with appropriate suppressors. The threaded muzzle accommodates standard 1/2x28 TPI suppressors, flash hiders, or compensators depending on mission requirements. At 10.5 pounds, the system maintains handleability while delivering reliable cyclic rates across factory ammunition. The 31-round magazine capacity provides meaningful firepower reserves in defensive scenarios, and the standard AR ergonomics—charging handle, controls, and rail interface—ensure cross-training compatibility with any operator already proficient on the platform.

Law enforcement specialists and tactical professionals gravitate toward the Banshee Mk4 for breaching operations, vehicle carbine duty, and close-quarters engagement where traditional long guns prove unwieldy. The compact profile reduces material signature in confined spaces while maintaining sight radius adequate for precision work. Standard Picatinny rail integration supports red dots, magnified optics, and accessories native to the AR platform, eliminating learning curves and reducing logistics complexity. The 8-inch barrel strikes an operational sweet spot—long enough for consistent .300 Blackout velocities, short enough for rapid movement through doorways and corridors. This platform delivers serious terminal performance in a form factor that bridges pistol and rifle capabilities.