The Soviet RGD-33 was an anti-personnel fragmentation stick grenade developed in 1933 from the Model 1914 grenade used during World War I.

The RGD-33 is constructed with a central detonator around which is the 80 gram (TNT) bursting charge. The charge is contained within a cylindrical can attached to a short throwing handle. Between the outer metal casing and the explosive charge is a series of deeply embossed steel cylindrical shells. Upon detonation the shells fragment in a multitude of mainly rectangular shaped thin steel fragments, which, along with the casing and detonator fragments, retard rapidly in air.