Optics-ready Staccato P with factory-mounted optic. The DUO ships with a mounted Trijicon RMR; same 2011 double-stack platform as standard P; adopted by many police agencies. Type: Pistol Action: Single-Action Caliber: 9mm Luger Capacity: 20 Year introduced: 2019, USA Weight: 38 oz Overall length: 8.5" Status: Active Intended use: law_enforcement, competition, self_defense