CMMG Banshee MK4 .300 Blackout Pistol 8" Midnight Bronze

The CMMG Banshee MK4: Compact Power in .300 Blackout

The Banshee MK4 represents a thoughtful approach to short-barrel rifle design. Chambered in .300 Blackout, this 8-inch pistol excels in suppressed applications and delivers reliable performance with both subsonic and supersonic ammunition.

Key Features

Receiver and Build Quality

• Billet 6061-T6 aluminum upper receiver paired with forged 7075-T6 aluminum lower
• Midnight Bronze Cerakote finish provides both aesthetics and corrosion resistance
• Direct impingement operating system proven in thousands of applications

Ergonomics and Controls

• CMMG ZEROED ambidextrous controls throughout: safety, charging handle, and mag catch
• 60/90-degree ambi safety selector for shooters of any hand preference
• Extended mag release button for positive manipulation
• ZEROED drop-in trigger delivers clean, predictable breaks

Barrel and Accuracy

• 8-inch 4140 chromoly barrel with 1:7 twist rate
• Black nitride finish resists corrosion
• 5/8x24 muzzle threads accept standard suppressors
• Medium taper contour balances handling and durability

Handguard and Accessory Mounting

• CMMG EML7 M-LOK handguard with full-length slots on sides and bottom
• Integrated Picatinny rail sections for optic mounting
• Generous mounting options for lights, lasers, and other accessories

Brace and Magazine

• CMMG RipBrace provides stable support and comfortable control
• Includes Magpul 30-round PMAG for reliable feeding
• Overall length: 23.7 inches; weight: 5.1 pounds

The Right Tool for the Job

Whether you're running subsonic ammunition through a suppressor or pushing supersonic loads downrange, the Banshee MK4 delivers the accuracy and reliability serious shooters demand. The thoughtful ergonomic design and comprehensive ambidextrous controls make this platform accessible to shooters of all experience levels.