125 mm artillery

self-propelled tank destroyer or light tank

Soviet main battle tank gun

The Ampulomet (, also rendered Ampulomyot, ampulla mortar, etc., lit. "ampule/vial thrower" cf. миномёт) was an expedient anti-tank weapon which launched a 125 mm incendiary projectile made of spherical glass. 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.

Soviet smoothbore 125 mm anti-tank gun