CMMG Banshee MK4 300 Blackout 12.5" Pistol 30+1 Tungsten

The CMMG Banshee MK4 300 Blackout delivers superior performance in a compact platform engineered for reliability and precision. This pistol combines CMMG's proven radial delayed blowback system with premium components for consistent cycling across subsonic and supersonic ammunition. Built on a tungsten Cerakote receiver with a 12.5-inch black nitride barrel, it excels in close-quarters applications where maneuverability matters.

What Makes This Different

The Banshee MK4 utilizes CMMG's patented radial delayed blowback operating system, eliminating the need for a buffer tube and reducing overall length by 7 inches compared to traditional AR platforms. The medium taper barrel profile balances weight distribution while the black nitride finish provides corrosion resistance rated for 20,000+ rounds. This system runs cleaner than direct impingement, reducing maintenance intervals significantly.

Key Features

• Radial delayed blowback system for reliable cycling with all 300 Blackout loads
• 12.5-inch medium taper barrel with 1:7 twist rate and 5/8x24 threading
• Tungsten Cerakote aluminum receiver with integrated Picatinny rail
• 7-inch EML M-LOK handguard for accessory mounting and heat dissipation
• CMMG Zeroed pistol grip optimized for control and ergonomics
• 30-round magazine capacity with compatibility for standard AR magazines
• SB Tactical brace ready with 1913 interface

Field testing demonstrates consistent 2-3 MOA accuracy with quality ammunition, while the delayed blowback system maintains reliable extraction even with heavily fouled components. The platform handles both 110-grain supersonic and 220-grain subsonic loads without adjustment, making it versatile for hunting, home defense, and suppressed applications. Weather sealing protects internal components during extended outdoor use.

Technical Specs

• Caliber: 300 AAC Blackout
• Barrel Length: 12.5 inches with medium taper profile
• Overall Length: 23.25 inches (brace collapsed)
• Weight: 6.2 pounds (unloaded)
• Receiver: Tungsten Cerakote aluminum with Picatinny rail
• Handguard: 7-inch EML M-LOK compatible
• Barrel Finish: Black nitride with 5/8x24 threading
• Magazine Capacity: 30+1 rounds
• Operating System: Radial delayed blowback
• Manufactured: United States

The Banshee MK4 represents CMMG's commitment to innovation in compact firearms design. Professional users choose this platform for its proven reliability and reduced maintenance requirements. Available inventory moves quickly due to the specialized operating system and premium component selection.