The reason we think of lasers looking like modern day assault rifles is because it's what we associate with weapons of war. Advanced technologies could just as easily be head mounted, they appear to shoot lasers out of their eyes. On closer inspection, they wear an odd helmet and the eyes are completely covered. Unfortunately you have no way of knowing how to initiate the neural link that make these work.
But they could be just about anything. Although I think they look a bit dumb they could just look like staves that fire bolts of energy ala Stargate. They could be handheld gizmos like Star Trek's hand held phasers. I think both are a bit silly because the standard design of firearms gives you sights and is comfortable, so you have to decide what esthetic you're going for if they are manually aimed instead of using thought targeting like above.