The CMMG BANSHEE 9mm Mk4 brings the versatility of the AR-15 platform to the world of pistol-caliber personal defense weapons. Built on a standard AR-15-pattern lower, this BANSHEE uses CMMG's 9mm AR conversion magazines, keeping the familiar AR-15 manual of arms intact. Offers in a wide range of Cerakote finishes, the BANSHEE stands out not just for its performance, but also for its style. From the rapid-deploy RIPBRACE to the sleek EML handguard, every detail of the BANSHEE is engineered for speed and reliability. Full-length M-LOK slots on the sides and bottom, plus additional slots between the top Picatinny sections, ensure you've got room for every essential accessory making this compact powerhouse ready for any mission.

CMMG's Radial delayed blowback operating system was developed for the .45 ACP MkG platform and has since been refined for use across the entire pistol caliber lineup, delivering smoother recoil, enhanced reliability and lighter reciprocating mass
Originally developed for the .45 ACP MkG platform, CMMG's Radial Delayed Blowback operating system is now used across their pistol caliber lineup, delivering smoother recoil and lighter cycling components
Radial Delayed Blowback (RDB) was a significant advancement over traditional straight blowback systems and the introduction of the compact action RDB further refined and improved the platform's efficiency
The addition of a fixed ejector in the RDB system represents another step forward, showcasing CMMG's ongoing commitment to integrating new technologies into the Radial Delayed Blowback platform
Every CMMG product is covered by our lifetime quality huarantee, a testament to our unwavering commitment to quality and craftsmanship
We stand behind our work, every CMMG product is backed by our lifetime quality huarantee, protecting against defects in materials and workmanship

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It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

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These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Magazines will be removed from firearms when shipping to states with magazine capacity restrictions.

California 10+ Round Magazine Buyers: PSA values your freedom and constitutional rights above all else. However, PSA will not accept new orders nor will ship any order until the Ninth Circuit Federal Court of Appeals mandate becomes finalized. Once this mandate is finalized, we will start accepting new orders and ship 10+ round magazines to California Customers.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).