The P7 is a German9mmsemi-automatic pistol designed by Helmut Weldle and produced by Heckler & Koch GmbH (H&K) of Oberndorf am Neckar. It was revealed to the public for the first time in 1976 as the PSP (Polizei-Selbstlade-Pistole—“police self-loading pistol”). The decision to equipWest Germanpolice with an advanced 9mm service pistol and replace existing7.65mm-caliber weapons was prompted after the1972 Munich Olympics Massacre.The new firearm was to meet the following requirements: chamber the9x19mm Parabellumcartridge, weigh no more than 1,000 g (35 oz), the pistol's dimensions would not exceed 180 x 130 x 34 mm, it should have a muzzle energy of no less than 500Jand a service life of at least 10,000 rounds. The pistol was also to be fully ambidextrous, safe to carry with a loaded chamber and able to be quickly drawn and ready to fire instantly.As a result of a competitive bid the German police forces selected three different pistols into service: theSwissSIG-Sauer P225(designated the P6) and two German designs—the P7 (officially designated the PSP) and theWalther P5.
Series production of the P7 started in 1979. Shortly after, the pistol was adopted by the German Federal Police's counter-terrorism unit (GSG 9) and the German Army's special forces formations. The P7 was produced primarily by H&K but also under license by the Greekdefense firm Hellenic Arms Industry as well as in Mexico by the Departamento de Industria Militar (DIM), as a sidearm for general officers and staff. The pistol was also exported to several countries.