The RGO hand grenade (Ruchnaya Granata Oboronitel'naya, ("Hand Grenade Defensive")) is a defensive Soviet fragmentation hand grenade introduced mid 1980s alongside the RGN during the Soviet-Afghan War to replace the earlier F-1, RG-42, and RGD-5 hand grenades, which proved to be inadequate in the mountains of Afghanistan.

The RGO-78 is a dedicated defensive version of the RGD-5. It contains less explosive and has a much thicker pre-fragmented steel body. The steel body contains about 850 steel balls.

RGO-78 – People's Republic of Bulgarian '70s variant with DVM-78 fuse. Grenade weighed 450 g (16 oz) and contained 85 g (3.0 oz) charge of TNT . RGN-86 – another People's Republic of Bulgarian modification with DVM-78 fuze.

This is the Bulgarian RGO-78 (РГО-78), a High-Explosive-Fragmentation (HE-Frag), pre-formed, defensive, striker-release, hand-grenade that follows the same general body outlines as the …

RGO-78. The RGO must not be confused with the RGO-78, a defensive hand grenade introduced in the same timeframe. The RGO-78 has a cylindrical body and time delay fuse since it is derived from the older RGD-5.

The function of the RGO-78 is the destruction of manpower. The fragmented ball lining inside has maximum impact and is fitted with a comprehensive detonating mechanism with a delay of 3-4.2 seconds. The RGO-78 is a variation of the RGD-5, which was developed in the early 1950s.

RGO - 78 DEFENSIVE HAND GRENADE Technical data: Blast radius, m 20 Safety radius, m 54 Tested height of drop safety (with fuze), m 3 Temperature limits, °С-20°…+50° Weight of grenade, kg 0,435 Overall length, mm 95 Diameter, mm Ø62 Weight of 0,080explosive, kg Ball diameter, mm Ø4 Fuze DVM Packing data:

The RGO-78 defensive hand grenade is intended for destruction of manpower. It has internal pre-fragmented ball lining and is fitted with detonating mechanism DVM that provides for delay detonation within 3.2 _ 4.2 sec.

The RGO-78 hand grenade is intended for use against enemy manpower in a defensive fight through its high-explosive fragmentation effect and the fragments that form upon destruction of its metal body.

Offensive Distance Hand Grenade RGD-5 . Click for details. [email protected].