The Q4 TAC (Tactical) is Walther's suppressor-optimized duty pistol, featuring a threaded barrel, optics-ready slide, and an ambidextrous frame-mounted safety. The Q4 TAC combines the PPQ's trigger with tactical-use features in a purpose-built configuration, rather than adapting a standard pistol with aftermarket components. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 15 Year introduced: 2018, Germany Weight: 28.2 oz Overall length: 7.7" Status: Active Intended use: tactical, law_enforcement, military, competition