Mikhail Kalashnikov Later career

Since 1949, Mikhail Kalashnikov has lived and worked in Izhevsk, Udmurtia. He holds an advanced degree of Doctor of Technical Sciences.

After World War II, as General Designer of small arms for the Soviet Army, his design subordinates included the Germans Hugo Schmeisser, designer of the StG-44, and Werner Grüner (of MG 42 fame) who was a pioneer in sheet metal embossing technology in the 1950s.

Over the course of his career he evolved the basic design into a weapons family. The AKM ("Avtomat Kalashnikov Modernizirovanniy" - Automatic Kalashnikov Modernized) first appeared in 1963, which was lighter and cheaper to manufacture due to the use of a stamped steel receiver (in place of the AK47's milled steel receiver), and contained detail improvements such as a re-shaped stock and muzzle compensator. From the AKM he developed a squad automatic weapon variant, known as the RPK (Ruchnoi pulemyot Kalashnikova - Kalashnikov light machine gun), and also the PK (Pulemyot Kalashnikova - Kalashnikov machine gun), which used the more powerful 7.62×54R of the Mosin-Nagant rifle. The PK series is a general purpose machine gun, which is cartridge belt-fed, not magazine-fed, as it is intended to fill the heavy tripod-mounted sustained fire role as well as the light, bipod-mounted role. The common characteristics of his weapons are the simple, elegant engineering and their ruggedness and ease of maintenance in all operating conditions.
  

Despite estimates of some 100 million AK-47 assault rifles circulating, General Kalashnikov claims he has not profited and that he only receives a state pension.[12] He does however own 30% of a German company Marken Marketing International (MMI), based in Solingen, that revamps trademarks and produces merchandise carrying the Kalashnikov name, such as vodka, umbrellas and knives. One of the items is a knife named for the AK-74.

  Source : wikipedia