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CMMG 9mm Banshee 5in Upper Group Receiver with fixed ejector for 9mm AR platforms. Designed as a compact Radial Delayed Blowback upper that works with MkGs, Mk17, Mk9 lowers, or mil-spec AR-15 lowers using 9mm conversion magazines. Specifications: Caliber 9mm Luger; Overall Length 13.7 in; Barrel Length 5 in; Barrel Twist 1-10; Threads per Inch 1/2x28; Muzzle Device CMMG Zeroed Muzzle Brake; Finish Cerakote; Fabric/Material Aluminum; Gun Rail M-LOK; Weight 2.6 lb; Barrel Material 4140 Chrome Moly Vanadium; Magazine Included No.
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