CMMG MkGs BANSHEE 9mm SBR, 5 in Threaded Barrel, Radial Delayed Blowback, Glock-Mag Compatible, Matte Gray
This CMMG MkGs BANSHEE 9mm SBR pairs CMMG's radial delayed blowback system with a compact 5 in threaded barrel and a Glock-magazine compatible MkGs lower. It is finished in matte gray, features the CMMG Fastback adjustable rear assembly, and includes a free-float M-LOK handguard with a continuous top Picatinny rail. The rifle is in excellent condition with a clean, mirror-bright bore.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Shows minimal prior use with clean exterior surfaces and no notable wear observed.
What’s Included
- 1x Glock OEM extended 31-round 9mm magazine
- Magpul MVG vertical grip (installed)
- CMMG Fastback adjustable rear assembly (installed)
- Knurled thread protector (installed)
- Magpul AR-pattern pistol grip (installed)
The MkGs lower is designed for Glock 9mm magazines and ships with a Glock OEM extended magazine. Capacity is 31+1, aligning with the included magazine’s configuration.
CMMG's radial delayed blowback action drives the AR-9 platform, working with a 5 in threaded barrel capped by a knurled thread protector. The manual safety selector provides familiar AR-style controls.
The AR-pattern upper includes a forward assist, shell deflector, and ejection-port cover. A free-float aluminum handguard with M-LOK slots and a continuous top Picatinny rail supports accessory and sight mounting, and a Magpul MVG vertical grip is installed.
The CMMG Fastback adjustable rear assembly (patent 10,551,144) offers approximate length-of-pull settings of 9 in and 12 in. Matte gray aluminum receivers carry factory markings: "BANSHEE," "MkGs," and "CMMG INC BOONVILLE, MO USA." Made in the United States.




