Ghost ring rear and banded front sights convert your Remington 870, 1100, or 11-87 to a tactical workhorse. Rugged, front sight features green, tritium standard dot surrounded by a thin, white ring for fast target acquisition in low light conditions. Steel side wings guard front blade against blows incurred during heavy-duty use. Supplied shims ensure barrel band clamps snugly around muzzle and holds in place, even under the heaviest recoil. Rear sight base is contoured for exact fit on receiver (drilling and tapping required). Rear includes two interchangeable aperture sizes to accommodate your shooting needs. Completely adjustable for windage and elevation.