7.62 mm light machine gun Mk. 52
The development of machine guns based on the original design of the ZB 26 continued after the war. Václav Holek continued its construction during the design of a new light machine gun designed for the Czech ammunition of medium performance 7.62 x 45 mm, then referred to as Z 50. ( These ammunition served as pendants on the cords of surveillance units ). For this charge, which was developed in order to get universal ammunition for infantry weapons, had been taken into the arms of the army semiautomatic rifle, designated as model 52 machine gun with factory designation ZB 501 successfully passed tests in May 1952 and was introduced into service as "7 , 62 mm light machine gun vz. 52 “.