Of these, the most important was the Praha II, a lightweight, belt-fed weapon built at Česka Zbrojovka CZ Praha Czech Arms factory in Prague.ĭevelopment of the ZB-26 began in 1923 after the Czechoslovak Brno arms factory was built. Etienne Mle 1907, and several domestic designs. Early trials included foreign designs such as Berthier, M1918 Browning automatic rifle, Darne machine gun, Hotchkiss M1914 machine gun, Madsen machine gun, St. In around 1921 the military of the young Czechoslovakian state embarked on a quest for a light machine gun of their own.