It is a soviet-made greande that contains 110g of TNT. Today the grenade is one of the cheapest hand-held explosives in the market costing only 5 US dollars a piece although low powered compared to modern grenades. Original RGD-5s are manufactured in Russia but clones of the grenade have been made in other places.
Overview
In the Zone, the RDG-5 is the most common explosive device available and carried by most stalkers, it is also fairly cheap with one costing about 500-600 rubles per piece only. Although it has a low blast radius, the RGD is invaluable for room clearing and urban combat as due to it's low powered nature, it's explosion limit's its destruction to a small area.
The RGD-5 is only slightly weaker then the F1 grenade - at point-blank range it can only deal 300 damage as opposed to 360.