Here is the next batch of guns I'm doing for my senior project, also for a small game design company in Poland.
Top: Olympus Armaments PL-AR 2550- A military grade plasma rifle with illegal power output upgrades. Features a glass window above the trigger where the power level remaining can actually be physically viewed. If the plasma is bright, there is a lot of charge remaining, if it gets dim, it's time to replace the battery. The hoses at the front are for cooling the barrel, which can get extremely hot.
Middle: Taurus Stackmaster Pro with thermal scope, laser guide, and silencer. This weapon uses a clip of ammunition with a deceivingly high ammo cap. each "bullet" is actually six projectiles stacked on top of each other separated by an electronically detonated firing charge. This gives the gun a blistering 1,000,000 rpm firing rate on full auto mode. The option most soldier prefer is the setting which fires one stack in a six shot burst. (Still feels like one shot!) There are also no spent casings to speak of.
Bottom: Veritas ZLR-9 Directed Energy Weapon. A lethal weapon for living and mechanized targets alike. The amount of power generated by the TT5 micro-fusion cell is simply staggering for a handheld rifle. The linear electron charge fries Robotic targets electronic components, and electrocutes human targets with disturbing ease. This gun has been banned on some of the moons of Jupiter.