The Folding Leaf Rear Sight is designed to fold down flat against the barrel on a rifle where another sight system, such as a Peep Tang Sight or scope, may also be used. The height adjustable sight notch piece, which is also available as a replacement piece, is reversible for a U-shaped or V-shaped notch. A hand painted white enamel diamond helps draw your eye to the center of the notch. Blue steel.