CAYN Labs PS80 Beam Rifle
A prototype beam sniper rifle. Though the weapon requires no reloading of typical ammunition, the operator must wait between shots for the gun to cool via a heat exchanger, lest it damage itself with the next shot. The most advanced version of the PS80, pictured above, features an IR jammer to aid in the prevention of the sniper's discovery through the gun's massive heat discharge.
I've never built a gun at this scale before. Or ever really built a gun as a standalone MOC. So just for fun I decided to try. :)