The Walther P38 is a 9 mm semi-automatic pistol that was developed by Walther arms as the service pistol of the Wehrmacht at the beginning of World War II. It was intended to replace the costly Luger P08, the production of which was scheduled to end in 1942.
The first designs submitted to the German Army featured a locked breech and a hidden hammer, but the Heer (German Army) requested that it be redesigned with an external hammer.
Several experimental versions were later created in .45 ACP, and .38 Super, but these were never mass-produced. In addition to the 9 mm Parabellum version, some 7.65x21mm Parabellum and some .22 Long Rifle versions were also manufactured and sold.