CMMG Banshee MK4 338 ARC 10.5" 10+1 AR Pistol - Armor Black

The CMMG Banshee MK4 is a compact semi-automatic AR-style pistol chambered in 338 ARC, purpose-built for shooters who want AR-platform ergonomics in a short, lightweight package.

Up front sits a 10.5" medium-taper threaded barrel machined from 4140CM steel with a nitride finish and a 1:8 rifling twist. CMMG outfits the pistol with their own ZEROED Linear Compensator on a 5/8x24 muzzle thread to tame felt recoil and muzzle rise, while an adjustable .750" gas block and a pistol-length gas port keep the action cycling reliably across a range of ammunition.

The aluminum upper and lower receivers wear CMMG's signature Armor Black finish and are paired with a CMMG Zeroed pistol grip and a black polymer stock. Iron sights are not included, leaving the top Picatinny rail clean for an optic of your choice. The complete pistol weighs just 5.60 lbs, giving it light, fast handling in a short overall package.

Feeding from a 10-round detachable magazine for a 10+1 capacity, the Banshee MK4 delivers AR-platform familiarity in a compact pistol format built around the modern 338 ARC cartridge. A detachable magazine is included.

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