Powell Custom Holsters has come up with an interesting holster design for use with Crimson Trace Rail Master lasers mounted on a handgun. The holster is molded in such a way that the Rail Master’s on/off paddle is activated when the handgun is holstered and unholstered. This means that you can turn on the laser and then insert it into the holster where it will automatically be turned off. When the handgun is unholstered, the laser is automatically activated.
This could be an interesting set up to use in conjunction with night vision and the IR versions of the Rail Master.