Dana Sterling's Spartas opening fire with an Electron Phase Rifle (Masters Saga: "False Start")
An Electron Phase Rifle was the primary short-ranged gun pod weapon used by Veritech Spartas and designed by the United Earth Forces. They were part of an attempted by the military to replace all projectile based weapons with energy ones. It was typically used in Battloid mode though it was also capable of being used as a mounted weapon in the other modes.