Features:The ZEV O.Z-9 Combat features all the same functionality and modularity of the O.Z-9 in a configuration optimized for durability without compromising on performance. Built with ZEV's windowless Citadel slide PRO match barrel and PRO Curved Face Trigger the O.Z-9 Combat is tailored to meet the stringent requirements of the discerning professional user.Specification: Action: Semi-automatic Caliber: 9mm Luger Barrel Length: 4.5" Color: Black Grips: Polymer Capacity: 17Rd Material: Steel