This is the Russian RGD-5 (РГД-5), Granata Distantsionnaya, Distance-Hand-Grenade or Time-Delayed (DLY) hand-grenade, a post World War 2, High-Explosive-Fragmentation (HE-Frag), Anti-Personnel (AP), defensive, hand-grenade, designed in the early 1950s, also made in Bulgaria, Albania, Georgia and Germany with a Chinese copy designated the Type 59.
The RGD-5 was accepted into service in 1954 and is still in service with many of Russia’s former client states and has been supplied to Iraq as well as other Arab nations. The hand-grenade produces around 350 fragments. The RGD-5 is egg-shaped with no external ribbing, except for a lateral ridge where the two halves of the hand-grenade join. The surface has a few small dimples on it with a green or olive-drab, paint-scheme.
Many millions of RGD-5s and their clones have been manufactured over the years and although not as advanced as more modern hand-grenades which are specifically designed to penetrate standard body armour, the RGD-5 is still an effective and inexpensive hand-grenade.