MP5 ,9 mm submachine gun

The MP5 is a 9 mm submachine gun of German design, developed in the 1960s by a team of engineers from the West German arms manufacturer Heckler & Koch GmbH (H&K) of Oberndorf am Neckar. The company, motivated by the success of the G3 automatic rifle, developed a family of small arms consisting of four types of firearms (all based on a common G3 design layout and operating principle), where the first type was chambered in 7.62x51mm NATO, the second – using the 7.62x39mm M43 round, third – the intermediate 5.56x45mm NATO caliber and the fourth type – chambering the 9x19mm Parabellum pistol cartridge. The MP5 (short for Maschinenpistole 5) was created within the fourth group of firearms, initially known as the HK54.
Work on the MP5 began in 1964 and scarcely two years later it was adopted by the German Federal Police, border guard and army special forces. It is currently used by the armed forces and law enforcement units of over 40 different countries. The submachine guns are manufactured under license in several nations including: Greece (formerly at EBO - Hellenic Arms Industry, currently at EAS - Hellenic Defense Systems), Iran (Defense Industries Organization), Mexico (SEDENA), Pakistan (Pakistan Ordnance Factories), Sudan (Military Industry Corporation), Turkey (MKEK), and the United Kingdom (initially at Royal Ordnance, later diverted to Heckler & Koch Great Britain). The MP5 remains one of the most widely deployed of all current submachine guns and has been developed into a family with numerous variants