Ok, so it doesn't actually work—it only lights up—and it will be expensive even at the expected $120 price point. But, we all know that something like will only improve a bedroom or gameroom full of helmets from Halo 3 Legendary Edition and night-vision goggles from Call of Duty: Modern Warfare 2 Prestige Edition.
This full-sized replica gun is made by NECA, a collectibles manufacturer, known for making just about anything from the action figures to movie props that geeks love. If you are any kind of Portal fan then you need something this cool sitting on your shelf.
Source: The Verge