Fg-19

A Japanese-designed 7.7mm light machine gun that was used by the Imperial Japanese Army. It was known for its reliability and effectiveness.

Fg-20

A Japanese-designed 7.7mm light machine gun that was a later development of the Fg-19. It featured a new barrel and a more robust receiver.

Fg-21

A Japanese-designed 7.7mm light machine gun that was a prototype. It featured a new barrel and a more reliable feeding mechanism.