The CMMG BANSHEE Fixed Ejector Upper Group is an 8-inch, 9mm radial-delayed blowback upper designed for BANSHEE Mk4, Mk9, Mk17 and MkGs platforms. It ships complete with a bolt carrier group and ZEROED accessories, including a polymer dust cover, ZEROED ambidextrous charging handle, and ZEROED linear compensator. This upper is engineered to work with CMMG 9mm conversion magazines on compatible mil-spec AR15 lowers.
Key Specifications
- The platform is Mk4, Mk9, Mk17, and MkGs.
- The caliber is 9mm.
- The operating system is Fixed Ejector Radial Delayed Blowback.
- The barrel length is 8 inches.
- The barrel twist rate is 1:10.
- The barrel material is 4140CM SBN.
- The muzzle device is a CMMG ZEROED Linear Compensator.
- The muzzle thread is 1/2 x 28.
- The upper receiver is Billet 6061 T6 Aluminum.
- The hand guard is a CMMG EML7 M-LOK.
This upper group provides a compact, carbine-like configuration that preserves controllability while offering the accessory interface and durability expected from billet construction and M-LOK hand guards. Its ZEROED accessories simplify installation and setup, making it a straightforward option for shooters who want a factory-complete 9mm upper for compatible BANSHEE or mil-spec AR15 lowers.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.
