This lightweight sight is ideal for all types of shooting, especially close in. Perfect sights for pistols, shotgun, when turkey hunting, bowhunters and air rifles. Turn on the sight, a small Red Dot (4 MOA) appears in the center of your scope, 11-position click rheostat to adjust the brightness. Field of view in feet @100 yds: 88', Length: 3.8", Weight: 5oz., Eye relief: Unlimited.