It's a PEQ box in this Airsoftology Gear Guide. Jonathan Higgs reviews the Element AN/PEQ-16A Laser Pointer and LED Box. This 3 LED lights, a Red laser Pointer, Blue LED and IR which is useful for those who use Night Vision Devices. Mountable on rails there is a rotating toggle switch for the various LED lights and is activated by a Button or a Remote Pressure Switch.