The CMMG Banshee MK4 in .300 AAC Blackout is an AR-style pistol built for range use and tactical training applications. Its compact profile and modular interface support accessory mounting and short-range performance where a compact pistol platform is required.
The Banshee MK4 is constructed with an aluminum frame and polymer grip and presents a bi-tone colored appearance. The platform is equipped with a CMMG EML7 M-LOK handguard and an 8-inch 4140 CM barrel finished in CREAKOTE TUNGSTEN, along with 5/8-24 muzzle threads and a ZEROED linear muzzle device for attachment options.
Key Specifications
- The caliber is .300 AAC Blackout.
- The action is Semi-Auto.
- The barrel length is 8 inches.
- The magazine capacity is 30 rounds.
- The number of magazines included is 1.
- The frame material is ALUMINUM.
- The grip material is POLYMER.
- The finish is COLORED.
- The frame color is BI-TONE.
- The optic footprint is PICATINNY.
State restrictions: This firearm is not available for sale to Illinois or Oregon, and it is not available for direct shipment to Rhode Island or Washington.
The CMMG Banshee MK4 pairs a compact 8-inch 4140 CM barrel with a modular handguard and an AR-style control layout intended for training and sporting use. With a 30-round capacity and a Picatinny optic footprint, the Banshee MK4 .300 AAC Blackout offers a compact, configurable AR-style pistol option. Order the CMMG Banshee MK4 .300 AAC Blackout online today.









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