CMMG Banshee Mk4 .300 Blackout 12.5-Inch AR Pistol

The CMMG Banshee Mk4 is a semi-automatic AR pistol chambered in .300 AAC Blackout and built on the Mk4 AR15 platform. Its 12.5-inch threaded barrel, M-LOK handguard, ambidextrous controls, and pistol brace provide a compact configuration for range use and practical shooting applications.

Key Specifications

• The firearm is chambered in .300 AAC Blackout.
• The semi-automatic action uses a direct-impingement operating system.
• The barrel measures 12.5 inches and features a medium-taper contour.
• The barrel has a 1:7 twist rate and is made from 4140CM steel with a black nitride finish.
• The threaded muzzle uses 5/8x24 threads and includes a CMMG ZEROED linear compensator.
• The CMMG EML handguard provides M-LOK accessory slots with integrated Picatinny rail sections.
• The upper receiver is constructed from 6061-T6 billet aluminum.
• The lower receiver is made from 7075-T6 forged aluminum.
• The pistol includes a CMMG RipBrace and a six-position Fastback receiver extension.
• The package includes one Magpul 30-round magazine, and listed capacity is 30+1.

ZEROED components, an ambidextrous charging handle, a drop-in single-stage trigger, and a Cerakote finish give this Banshee a well-appointed configuration for shooters seeking a capable .300 AAC Blackout platform with broad accessory compatibility.

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