CMMG BANSHEE MkGs AR-9 Pistol, 9mm Luger, 5 in Threaded Barrel, Radial Delayed Blowback, Glock-Mag Compatible, Black
The CMMG BANSHEE MkGs stands out as a compact AR-9 pistol built around CMMG's radial delayed blowback system with a 5 in nitride-treated, threaded barrel. Its MkGs Glock-pattern lower accepts double-stack 9mm Glock magazines, and it comes configured with an adjustable brace on the CMMG Fastback receiver extension, an extended ambidextrous charging handle, and a free-float aluminum handguard with a full-length Picatinny top rail. Made in the USA.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks from previous use are present. Please see the photos for complete details.
What's Included
- 1x 15-round Magpul PMAG GL9 (Glock 19 compatible) polymer magazine
This BANSHEE configuration uses CMMG's radial delayed blowback action for 9mm Luger, paired with a MkGs Glock-pattern lower that is compatible with double-stack 9mm Glock magazines. Capacity is 15+1 with the included 15-round magazine.
The 5 in barrel is 4140 CM steel with a salt-bath nitride finish for durability. It is threaded 1/2x28 and fitted with a knurled thread protector. The 1:10 twist is optimized for common 9mm bullet weights.
Controls and furniture include a Magpul MOE pistol grip, a manual safety with SAFE/SEMI selector markings, and CMMG's extended ambidextrous charging handle. The brace is adjustable and mounts on the CMMG Fastback receiver extension marked FASTBACK and CMMG PAT, with a QD sling socket for simple sling attachment.
The upper and short free-float aluminum handguard provide a rigid, lightweight front end. A full-length Picatinny top rail runs across the upper and handguard for mounting sights or accessories. The receivers are aluminum with a black finish and factory markings including CMMG, MkGs, BANSHEE, and CMMG INC BOONVILLE MO USA.
Built in the USA, this AR-9 pistol delivers a compact 9mm platform with thoughtful features throughout, from its rail and handguard setup to its brace and charging handle configuration.




