CMMG 30AB20FCT Banshee MK4 .300 Blackout 12.5" 31-Round Carbine

The CMMG 30AB20FCT Banshee MK4 .300 Blackout 12.5" carbine represents the evolution of subgun-class rifle design for professional operators and civilian shooters who demand suppressor-ready performance in a compact platform. Purpose-built for .300 Blackout's subsonic envelope, this 31-round carbine is ideal for close-quarters operations, home defense, and specialized law enforcement applications where noise signature and concealability matter equally.

The Banshee MK4's 12.5-inch barrel is optimized for .300 Blackout's ballistic sweet spot, maximizing velocity from subsonic loads while maintaining inherent accuracy beyond 100 yards—critical for shooters who prioritize suppressed fire without sacrificing energy downrange. The 31-round magazine capacity, coupled with CMMG's modular design philosophy, delivers tactically relevant ammunition reserves without excessive profile inflation.

At a verified weight of 9.8 lbs, the platform remains controllable in tactical carbine transitions and vehicle-mounted scenarios; the compact 39.6-inch overall length ensures maneuverability through tight doorways and confined spaces where longer AR-platform rifles become liabilities. The threaded muzzle accepts industry-standard suppressors and muzzle devices, enabling shooters to tailor sound signature and recoil characteristics to mission requirements.