A coulgun uses superconductive coils to propel a ferromagnetic slug to a high velocities. Mining coilguns typically fire a empty iron shell that's designed to collapse on impact and deliver most of the energy to center of the ringroids. Coilguns are more complex than railguns and have lower rate of fire, but have much better efficiency and typically can fire heavier projectiles.

Coilgun requires a kinetic ammo storage to function.