9mm has always been a natural fit for suppressed shooting and the ZEROED BANSHEE Suppressed Upper Group makes the most of it. – The Fixed Ejector Radial Delayed Blowback operating system pairs naturally with the included ZEROED 36 suppressor which tucks neatly inside the oversized dad bod-ish 11 M-LOK handguard. – With compatibility across Mk4 MkGs and Mk17 lower receivers this is one of the most versatile suppressed upper groups in the lineup. – Specifications – Caliber 9mm – Operating System Fixed Ejector Radial Delayed Blowback – Barrel Length 6.5 – Barrel Twist 1:10 – Barrel Contour MT – Barrel Material 4140CM Nitride – Muzzle Device ZEROED 36 – Muzzle Thread 1/2 x 28 – Upper Receiver Mk4 PCC Fixed Ejector 6061 T6 Aluminum – Hand Guard 11 M-LOK (1.72 Inner Diameter) – Finish Cerakote – Charging Handle CMMG ZEROED Ambi – Weight 4.0 lbs – Length 19.5