TRUGLO Brite-Site Xtreme 5-Pin .029" Sight W/Light Black Large circular field of view. Aperture has a 2" inner diameter. Lightweight composite pin guard. Glow-in-the-dark shooters ring helps align peep sight. Level with two vertical bars. CNC machined. Adjustable for left and right handed shooters. Markings for elevation and windage. Tool-less design.