The CMMG Banshee Mk4 is an AR-platform pistol built on CMMG’s Mk4 receiver set and configured for compact, modular performance. It pairs an 8″ barrel with full M-LOK handguard slots and CMMG ZEROED controls for familiar ergonomics and versatile accessory mounting. The package includes a 32-round magazine and factory-selected ZEROED components for immediate use in close-quarters and compact-platform applications.
Key Specifications
- The caliber is 5.7x28mm as shown in the model name and attributes.
- The action is Semi-Auto.
- The barrel measures 8 inches and uses a medium taper contour.
- The barrel material is 4140CM SBN.
- The barrel twist rate is 1:9.
- The muzzle threads are 1/2 x 28 and fitted with a CMMG ZEROED Linear Comp.
- The magazine capacity is 32 + 1.
- The handguard is a CMMG EML7 M-LOK with full-length M-LOK slots on the sides and bottom.
- The upper receiver is Billet 6061 T6 Aluminum and the lower is Mk4 Forged 7075 T6 Aluminum.
- The overall weight is listed as 5 lbs with an overall length of 23.7 inches.
The Mk4 Banshee blends a compact footprint with AR-platform modularity: ZEROED controls, an ambidextrous charging handle, and a CMMG RipBrace-compatible receiver extension provide broad ergonomics and accessory options. The CMMG EML handguard and Picatinny rail sections allow mounted optics and support equipment without sacrificing handling.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
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