Gamma gun.

The gamma gun is a very crude weapon overall, and appears to have been built from scavenged junk found throughout the wasteland. The "dish" of the weapon is a small metal bowl with some metal wiring running towards the center and the central housing is a steel hexagonal structure with holes of varying size and shape. Assorted wiring, piping and other junk protrudes out of the rear of this structure, along with the three gamma round cells arranged in a triangular shape on top. The grip appears to be a handle-less spatula, welded onto a rectangular piece of metal pipe and stuck onto a piece of solid steel to unite it with the rest of the weapon.The gamma gun launches a small blast of radiation damage that explodes on impact.