During the Soviet-Chinese border conflict in 1969, Chinese forces captured a Soviet T-62, which had a significant impact on the development of the 122 TM. In autumn 1970, two prototypes were manufactured featuring additional armament: four anti-tank missiles on the turret's sides and a double-barreled DShK machine gun on the gunner's hatch. During trials in 1971–1973, the construction proved faulty, leading to development being discontinued in 1974.