The Killer Combo includes a Beard Buster rear sight, a Duck Buster rear sight and a low profile front sight with interchangeable light pipes designed for use in all hunting weather conditions. The orange ring helps hunters gauge target distance to approximately 30-35 yards away, within the kill zone range of most shotguns. It is adjustable for windage and elevation with the simple turn of a key. Dead Ringer’s rings and light pipes are made of Optical Lexan, making them 10X stronger than fragile fiber optic sights. The frame and bases are made of machined aluminum. It is finished in Mossy Oak Duck Blind.