This scope projects a laser beam that looks like a small red dot into your target. Adjustable for windage and elevation. Comes with 2-sets of mounting rails, .22/Air Rifle and "Weaver style" bases. Has two switches, one on top of the body and the other is a momentary pressure sensitive switch and wire that mounts on the gun. View in feet @100 yds: 88', Length: 3.8", Weight: 5oz., Eye relief:Unlimited.