CMMG BANSHEE MkGs 9mm AR Pistol, 5-inch Barrel, Radial Delayed Blowback, Threaded, Fostech Echo 2 Binary Trigger
This CMMG BANSHEE MkGs is a compact 9mm AR-pattern pistol built around CMMG's radial delayed blowback system and a 5-inch threaded barrel. It is customized with a Fostech Echo 2 binary trigger and uses the MkGs lower that accepts Glock-pattern 9mm magazines. The pistol includes thoughtful control upgrades, a slim free-float M-LOK handguard, and a full-length 1913 top rail, all in a durable Cerakote finish.
The slick-side upper deletes the forward assist while retaining an ejection-port cover, and a compact 3-port muzzle device is installed. An ambidextrous charging handle with extended latches, an enlarged paddle-style magazine release, and an ambidextrous safety selector support efficient handling. The brace setup uses CMMG's Fastback/RipBrace receiver extension with a hook-and-loop forearm strap.
The receiver set is aluminum with Cerakote finish, and the pistol features CMMG branding on the receiver and textured polymer pistol grip. The Fastback receiver extension is marked "CMMG PAT: 10,551,144." This AR-9 pistol ships with two 19-round Glock OEM magazines equipped with aluminum extended baseplates. Made in the USA.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are scuffs and finish wear concentrated around the ejection port.
What’s Included
- CMMG BANSHEE MkGs 9mm AR pistol with 5-inch barrel
- 2 Glock OEM 19-round 9mm magazines with aluminum extended baseplates
- Fostech Echo 2 binary trigger installed
The BANSHEE MkGs platform is designed for Glock-pattern 9mm magazines, offering reliable feeding and broad magazine availability. This example includes two OEM Glock double-stack magazines outfitted with aluminum extended baseplates.
CMMG's radial delayed blowback action softens recoil impulse compared to straight-blowback 9mm ARs, paired here with a compact 5-inch threaded barrel and a low-profile 3-port muzzle device. The slim free-float M-LOK handguard and full-length 1913 top rail provide mounting versatility.
Controls are enhanced for practical use: an ambidextrous charging handle with extended latches, an ambidextrous safety selector, and an enlarged paddle-style magazine release. The MkGs slick-side upper omits the forward assist while retaining an ejection-port cover.
The brace assembly features CMMG's Fastback/RipBrace receiver extension with a hook-and-loop forearm strap; the extension is marked "CMMG PAT: 10,551,144." The aluminum receiver set wears a Cerakote finish, and CMMG logos are present on the receiver and pistol grip. A Fostech Echo 2 binary trigger is installed, and the pistol is made in the USA.