The LPO-50 (Lyogkiy Pyekhotnyy Ognyemyot (Легкий Пехотный Огнемет), "Light Infantry Flamethrower") is a Soviet flamethrower developed in 1953 to replace the ROKS-2/3 flamethrowers used during World War Two,[2] it was kept in the inventory well into the 1980s. This model was designed as a lightweight, manpack flamethrower with three upright cylinders and a bipod-mounted flame gun.[3] It differed from Western flamethrowers in that it used special ignition cartridges to expel the thickened fuel mixture rather than an inert gas. During the 1960s, the weapon was manufactured by the People's Republic of China. It was replaced in Soviet service by the RPO "Rys" and RPO-A Shmel incendiary rocket launchers in the 1980s.