(.40 S&W) Feed system 16-round detachable box magazine (9x19mm Parabellum) 12-round box magazine (.40 S&W) Sights Interchangeable 3-dot notch sight The Walther P99 is a semi-automatic pistol made in Germany by Walther Sportwaffen . The design of the P99 was initiated in 1994, and the handgun was presented in 1997. The