Included with the SG itself is its dual purpose carrige and ammo can / belt 
The SG-43 Goryunov was a Soviet medium machine gun that was introduced during the Second World War. It was chambered for the 7.62×54R cartridge,(also known for its use in the Mosin-Nagant), and was introduced in 1943 as a replacement for the older M1910 Maxim machine guns. It was mounted on wheeled mounts, tripods and armored vehicles.