Stugna
Stugna is a gun-launched antitank guided missile designed to be launched from a 100-mm antitank gun like the 100 [mm anti-tank gun T-12|MT-12 Rapira] or the main gun of a T-55 tank.
The Stugna gun-launched missile shouldn’t be confused with the Stugna-P portable missile system, also called Skif.