A Mobile Inertia Cannon is a modified graviton pulse projector which sends out a narrow cone of gravitons which impart a velocity onto an object that is opposite the direction the pulse was moving. This sends the object towards the firing starship where it can be caught and processed.
KFY Graviton Beam Projectors have been around for ages, but were generally limited to large fixed stations on starships. The MIC allows for faster, more versatile salvage operations - it is small enough to fit inside most shuttles and can me stationed in the armor or shuttle bays of small starships.
Round base ring with center axle for rotation, power cable hookups in the trunk (rotating box of sorts), and cannon laying on top of the trunk. Targeting system display and small seat attached to the rear. Object-catching graviton projector at the front for slowing and landing objects as they get close.