The SKS semi-automatic rifle was designed by the famous Soviet firearms designer Sergei Gavrirovich Simonov during World War II and finalized in 1946. It is equipped with the Soviet semi-automatic rifle, also known as SKS, or Simonov Abbreviation for auto-loading carbine. Also known as: SKS semi-automatic carbine. The SKS semi-automatic rifle is the first rifle to fire the 7.62×39mm M43 intermediate power bullet of the former Soviet Union. The SKS semi-automatic rifle is a self-loading bullet rifle. It adopts a gas-guided weapon of common structure and is equipped with a sword-shaped bayonet. It has the advantages of simple structure and good rigidity, and is a weapon with good performance.