Many have tried but.. They rarely have the full package of dual spectrum light and laser. VIS light and vis laser as well as IR light and IR laser. The PEQ-14 is such a pistol light. It has an incandescent bulb for white light as well as a red visible laser. The VIS laser is slaved to the IR laser so when you zero one, it zeroes the other. And to complete the package the Insight PEQ-14 has an IR laser illuminator. It was designed by Insight Technology (now Eotech) for the US SOCOM pistol, the MK23. The military also calls it the ILWLP (Integrated Laser White Light Pointer). However this version will fit any railed pistol. This is in excellent condition. If you have the MK23 you will need the adapter for this version. We recommend GG&G version and if you pay full price we will include one adapter for you. These are the real deal and have been fully tested for functionality.