The RGD-5 is a Russian fragmentation grenade developed after World War II. In contrast to the pineapple design used in World War II, the RGD-5 has a smooth casing with a crimp line running around the middle of the grenade. The body consists of two sheet-steel halves crimped together with an interior fragmentation liner, similarly to the M67 grenade. The fuse is taller, thinner, and more rounded compared to American grenades, and is hermetically sealed to the body. This means the RGD-5, and other grenades, will still detonate if dropped into water. The safety pin is also located on the opposite side in comparison to the M26.