Magnetar rifles represented a class of experimental disruptor rifles engineered by the Galactic Republic in the era of the Cold War, with a specific focus on neutralizing energy shields. These rifles were stockpiled within the armory of the clandestine prison located on the planet Belsavis throughout the duration of the Galactic War that pitted the Republic against the Sith Empire. In the course of the Invasion of Belsavis, a prisoner faction known as the Condemned infiltrated the armory with the intention of acquiring weaponry to deploy against the Prison Administration Center. Subsequently, Warden Graal dispatched an operative loyal to the Republic to retrieve the magnetar rifles, as the possibility of the prisoners utilizing them was deemed unacceptable.