A Railgun is an Electromagnetic weapon that fires a projectile (or armature) using an electric current. The barrel of the gun contains a pair of rails which are connected to an enormous power supply (typically a compulsator) which is contained in the distinctive hook like appendage at the rear. An electric current passing along the rails and through the armature generates a magnetic field which propels the projectile with great speed along the barrel and out through the muzzle of the gun.

Railguns have a distinct advantage over Lasers in that they are not inhibited by shields. However their range is inferior and they typically require more skill to use as a trajectory to the target must be calculated.