High Quality Content by WIKIPEDIA articles! The SKS is a Soviet semi-automatic rifle chambered for the 7.62x39mm round, designed in 1943 by Sergei Gavrilovich Simonov. Its complete designation, SKS-45, is an initialism for Samozaryadnyj Karabin sistemy Simonova, 1945 (Russian: Самозарядный карабин системы Симонова, 1945; Self-loading Carbine of (the) Simonov system, 1945), or SKS 45. In the early 1950s, the Soviets took the SKS carbine out of front-line service and replaced it with the AK-47; however, the SKS remained in second-line service for decades. It is still used as a ceremonial arm today. The SKS was widely exported, and was also produced by some former Eastern Bloc nations as well as China, where it was designated the "Type 56", East Germany as the Karabiner S and in North Korea as the "Type 63". The SKS is currently popular on the civilian surplus market in many countries, including the United States. It was one of the first weapons chambered for the 7.62x39mm M43 round, which was also used later in the AK-47.