CMMG Banshee Mk17 9mm AR Pistol, 5-inch Threaded Barrel, Radial Delayed Blowback, Bronze/Tan, Uses SIG P320 Magazines
This CMMG Banshee Mk17 stands out for its SIG Sauer P320-pattern magazine compatibility, compact 5-inch threaded barrel with a factory thread protector, and CMMG's Radial Delayed Blowback operating system. It features ambidextrous controls, a free-float aluminum M-LOK handguard with a continuous 1913 Picatinny top rail, and a uniform bronze/tan Cerakote finish. Made in the USA.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The original bronze/tan Cerakote finish remains largely intact across the receiver and the M-LOK free-float handguard, with minor thinning at typical high-contact points. Light handling marks are present and consistent with careful use.
What's Included
- CMMG Banshee Mk17 9mm AR pistol (5-inch barrel)
- 1x 21-round SIG P320-pattern steel magazine marked "MADE IN ITALY"
- Factory thread protector installed
The Mk17 lower, marked with BANSHEE script and SAFE/SEMI selector markings, is designed to run SIG Sauer P320-pattern magazines. This example ships with a 21-round steel magazine and supports a 21+1 capacity with last-round bolt hold-open.
CMMG's Radial Delayed Blowback operating system drives the action. Controls are ambidextrous, including the safety selector and an ambidextrous charging handle with extended latches. The AR-pattern upper includes a forward assist, brass deflector, and ejection-port cover.
The 5-inch 9mm barrel is threaded and fitted with a factory thread protector. A free-float aluminum M-LOK handguard aligns with the receiver to create a continuous 1913 Picatinny top rail.
Construction centers on aluminum receivers finished in a uniform bronze/tan Cerakote. Ergonomics include a Magpul MOE pistol grip and CMMG's Fastback receiver extension with an adjustable brace. This AR-9 configuration is manufactured in the USA.