CMMG Banshee MK4 .300 AAC Blackout 12.5″ 30+1

About this product

Compact and capable, the CMMG Banshee MK4 is configured for optimized performance with subsonic, suppressed, and short-barrel supersonic applications. It pairs a 12.50" black nitride medium-taper threaded barrel with an EML 7" M-LOK handguard for modular accessory mounting. ZEROED components include the pistol grip, drop-in trigger, ambidextrous controls, linear compensator and other controls; the package also includes a 30rd PMAG.

Key Specifications

• Caliber: .300 AAC Blackout.
• Action: Semi-Auto.
• Barrel length: 12.50″.
• Barrel finish and profile: Black Nitride medium taper, threaded.
• Capacity: 30 + 1.
• Handguard: EML 7″ M-LOK.
• Receiver: Tungsten Cerakote aluminum Picatinny rail.
• Grip: CMMG Zeroed.
• Safety: CMMG Zeroed 60/90 degree ambidextrous.
• Includes: 30rd PMAG magazine.

With a compact footprint, modern ergonomics and a robust set of ZEROED controls, the Banshee MK4 is a flexible AR-style pistol platform for shooters who require a short-barrel, suppressor-friendly build with straightforward modularity. Its combination of threaded black nitride barrel, M-LOK handguard and Cerakote-finished receiver makes it well-suited for range use and practical short-barrel applications.

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