Ampulomet

миномёт) was an expedient anti-tank weapon which launched a 125 mm incendiary projectile made of spherical glass.

[4][5] This weapon was introduced in 1941 and used (to a limited degree) by the Red Army in World War II, but by 1942 was largely obsolete.

[6] The weapon consisted of an unrifled tube with a crude breech mounted on a Y-shaped pedestal which pivoted on trunnions to provide elevation.

A black powder charge was inserted into the breech and fired by a percussion cap to propel the AZh-2 glass ampule.

The burning liquid would seep through vision slots or engine grilles on a tank and ignite ammunition or fuel as well as choke and blind the crew.

Finnish troops testing a captured Ampulomet in 1941.