A range finder includes housing, circuitry, a lens, a display, and a plurality of threaded apertures. The housing has a front end, a rear end, and a bottom portion extending between the front end and the rear end. The range finder circuitry is located within the housing. The lens is located at the front end of the housing. The display is located at the rear end of the housing. The plurality of threaded apertures are located in the bottom portion of the housing.