CMMG's Banshee MK4 in 300 Blackout delivers compact firepower with a 12.5" barrel, 30-round magazine, and stabilizing brace. Purpose-built for suppressed shooting and close-quarters performance.
The Banshee MK4 represents CMMG's refined approach to modern pistol-caliber carbine design, chambered in 300 Blackout—a cartridge specifically engineered for subsonic performance and suppressor compatibility.
Unlike 5.56 NATO, 300 Blackout was designed from the ground up for subsonic ammunition. When paired with a suppressor, subsonic loads deliver hearing-safe performance without sacrificing stopping power. Supersonic loads provide extended range when needed.
The 12.5" barrel keeps overall length manageable while maintaining velocity for reliable function. The stabilizing brace provides the control of a short-barreled rifle in a more portable package. The 30-round magazine ensures adequate capacity for training and defensive scenarios.
The Banshee MK4 is purpose-built for shooters who understand that sometimes, less is more—and quieter is better.