Our New Retay XPRO blank firing gun has beautifully detailed design and is built with exemplary construction to insure proficient operation. Details; Caliber: 9 mm P.A.K, Magazine Capacity: 14+1 in the chamber, Safety: Firing Pen Safety, Length: 7.78", Height: 5.35", Weight: 1.8 lbs, Trigger Mechanism: Double action, System: Semi automatic.