The Walther Q4 SF (Steel Frame) is a steel-frame version of the Q4 TAC, featuring the same tactical features — optics-ready slide, threaded barrel option, front and rear serrations — on a heavier steel frame. The steel frame adds approximately 11 oz compared to the standard Q4 TAC, providing improved recoil control and a lower bore axis feeling. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 15 Year introduced: 2020, Germany Weight: 38 oz Overall length: 7.7" Status: Active Intended use: Tactical, Competition, IPSC Production