Nul Froth Caster

Gravitation used as the base of weapons has been a concept especially embraced and developed by the Nul. They perfected Graviton Mines and the Nul Froth Casters (Froth is Nul-Nul for Gravity) engulf the target in oscillating Graviton fields (oscillating gravitation means the target gravitation is drastically increased and decreased in very short and fast cycles.)

While the Graviton mines usual mode of operation is to send out graviton waves in all directions, the Froth Casters in general have a longer range and operate within a narrow cone.

Nul Froth Casters can be used either singly against a target or in pairs - in the later case, depending on the size and distance to the target, the fields are controled in such a way that they either add to each other's effect on a single point, or they are targeted at the two extremes and are half a cycle apart.

The cycling Graviton fields put enormous stress on materials and anything less than the most advanced materials are rendered to the finest dust. The effect is particular deadly to living organisms.

Other civilizations of a similar tech level have copied or developed similar weapons.