The Walther PPK was seen in Beverly Hills Cop III.
The most common variant is the Walther PPK, the Polizeipistole Kriminalmodell (Police Pistol Detective Model), indicating it was more concealable than the original PP and hence better suited to plainclothes or undercover work. Kriminal refers to the police detective (criminal) division. Sometimes, the name Polizeipistole Kurz (Short Police Pistol) is used; however, the accuracy of that interpretation is unclear. The PPK is a smaller version of the PP (Polizeipistole) with a shorter grip and barrel and reduced magazine capacity. The PP and the PPK were among the world's first successful double action semi-automatic pistols that were widely copied, but still made by Walther. The design inspired other pistols, among them the Soviet Makarov, the Hungarian FEG PA-63, the Argentinian Bersa Thunder 380, the Swiss SIG P230, the German Mauser HSc, the Spanish Astra Constable, the American Jennings J-22 and Iver Johnson TP-22, and the Czech CZ50. Originally built in 1929, the Walther PPK remains a popular pistol used today for concealed carry, VIP protection, and various police, though usually superseded by newer designs. After more gun control laws, the PPK/S was created, which combined a PP slide with a PPK frame.
It features an exposed hammer, a traditional double-action trigger mechanism, a single-column magazine, and a fixed barrel that also acts as the guide rod for the recoil spring. The series includes the Walther PP, PPK, PPK/S, and PPK/E. Various PP series are manufactured in either Germany, France or the United States. Since 2002, the PPK variant is solely manufactured by Smith & Wesson in Houlton, Maine, United States, under license from Carl Walther GmbH Sportwaffen. In the past, this particular model has been manufactured by Carl Walther in its own factory in Germany, as well as under licenses by Manurhin in Alsace, France, and by Interarms in Alexandria, Virginia, USA.