A handgun mounted laser sight that is combined with a trigger-guard mountable switch with flexible connections that accommodate various different geometries of handgun frames. A flush surface-mounted switch secured to the underside of the handgun trigger guard contacts mating the laser sight are located on the downward facing surface of the gun frame forward of the trigger guard. The switch is designed and located to provide passive user switching in use without separate movement or applied force of the user's hand or fingers.