A Dug rail gun functioned as an artillery weapon for the military of Malastare during the Clone Wars, and was a weapon of the Dug species. These guns saw action in the Battle of Malastare, where they fired upon the Separatist Droid Army; they provided anti-air support for BTL-B Y-wing starfighters against Vulture droids as the Y-wings advanced to the location where they would drop the Electro-proton bomb, an action which would eliminate the enemy forces. Following the battle, the rail guns were deployed once more in an effort to eliminate the Zillo Beast, which had been roused from its slumber by the bomb's explosion. Regrettably, all of the rail guns were obliterated.