A combined range finding and sighting apparatus for a weapon includes a housing therein supporting one or more laser emitters, an optical detector for detecting an optical signal reflected from the target, and a processor. The one or more laser emitters includes a first laser emitter operable in a first mode for emitting an optical signal toward the target a second mode for projecting a first beam onto the target. The processor is coupled to a computer readable memory encoded with executable instructions and is configured, upon execution of the executable instructions, to calculate a distance to the target based on a time of flight of the optical signal. In a further aspect, a method of using a combined range finding and sighting apparatus is provided.