Other Details Manufacturer: ROST MARTIN Manufacturer Part Number: RM1CXBLKOSP10CA(COMP) Barrel Length: 4" Caliber/Gauge: 9mm Capacity: 10 + 1 Frame Finish: Black Grip Material: Interchangeable Backstrap Safety: Trigger/Firing Pin/Integral Locking System Slide Description: Optic Ready/Serrated