The IR 87ER Railgun is a series of super-heavy railguns yet to be released by the Imperial War Arsenal of Imperialia. The gun is almost fully developed, but a recent test fire of the gun reveals the gun too dangerous for the enemy and the user, henceforth further developments of it safety measures. However it is confirmed that the gun will be able to penetrate the armour of the Disaster Class ships, thus being a super powerful weapon.