VEŽBOVNA BOMBA RUČNA KUMULATIVNA M-79
This grenade is practice version of Yugoslavian BRK M-79 grenade.
The handle of the grenade has the same construction as the handle of live M-79 grenade, and it is made of the same material. The body of the grenade is made of black plastic and it has the same weight as live grenade.
The practice grenade has 4 holes drilled in its body to relief the pressure of the practice charge, which has a black powder filling instead of an explosive filling.
Information and scans thanks to Goran.