26 ('LK' means 'lehký kulomet', light machine gun 'vz.' stands for 'vzor', Model in Czech). This light machine gun in the Czechoslovak army was marked as the LK vz. The ZB-26 is famous for its reliability, simple components, quick-change barrel and ease of manufacturing. 26 influenced many other light machine gun designs including the Bren light machine gun, FM 24/29 light machine gun, and the Type 99 Light Machine Gun.
It saw its major use during World War II, and spawned the related ZB vz.
26 was a Czechoslovak light machine gun developed in the 1920s, which went on to enter service with several countries.
