The BTR-50 is a Soviet tracked amphibious armored personnel carrier (APC) based on the PT-76 light tank chassis. The BTR-50 was developed in 1952 and entered service with the Soviet Army in 1954. It ceased production in the USSR in 1970, but production continued in Czechoslovakia until 1972 and there is suggestion that it still produced by some foreign companies. It has the ability to transport up to 20 fully equipped infantrymen, and can be armed with nothing, a 7.62 mm SGMB medium machine gun, or a 14.5 mm KPV heavy machine gun. It saw notable service in the Six-Day War, the Yom Kippur War, and most recently in the Russo-Ukrainian War.