On the threshold of the 1930s, the design of the Model 24 pistol seemed too complicated and obsolete. At the incentive of the Military Technical and Airforce Institute (VTLU), designer Frantisek Myska (1899–1983) started to work on a new type of military weapon at Ceska zbrojovka in Strakonice, using a patented trigger mechanism, nowadays abbreviated as DAO (Double Action Only). Unlike most known designs, Myska’s prototypes were characterized by an originally designed breech and barrel connected to the pistol body, so that the gun was disassembled into only three parts: the breech, the pistol body with the barrel, and the magazine.
At the end of 1937, the Ministry of National Defence ordered 25 pistols which were tested by the services in the spring of 1938. Based on that, in April 1938, the Armaments Commission proposed the introduction of a weapon designated the Model 38 pistol, and subsequently the factory received an order for 41,000 pieces. They did not become of the Czechoslovak armaments; their serial production ran from July to December 1939 and were taken over by the German military administration.