The Walther P38 (originally written Walther P.38) is a 9 mm semi-automatic pistol that was developed by Carl Walther GmbH as the service pistol of the Wehrmacht at the beginning of World War II. Short recoil, hinged locking piece assisted breechblockġ,050 ft/s (320 m/s) Carl Walther Waffenfabrik, Mauser Werke, Spreewerk