Abstract: Disclosure relates to an effective, yet inexpensive range finder and sight guide for an archer's bow, particularly for hunting of game, such as deer. The device thereof includes a frame, removably mounted to the archer's bow, having a pair of vertically oriented guide rails for slidably receiving a slide member. A pair of pivotal arms are rotatably mounted to the slide member, where each arm fixedly mounts a horizontally disposed range pin. By manually adjusting the slide member, the respective range pins may be moved closer or farther apart to accurately define the intended game target. Further included is a horizontally disposed sight pin, fixedly secured to the slide member, that remains intermediate to and parallel with the range pins irrespective of the vertical position of the slide member.