Williams Firesight WGRS-Optima Peep Sight With Firesight Front | 70271. Fits: Optima, Optima Pro, Kodiak, Kodiak Pro, Wolf. Includes .485" height Firesight front sight. Williams WGRS Firesight Peep Sight Sets are compact, low profile, lightweight, strong, rustproof, and have positive windage and elevation locks. In most cases Williams WGRS sights utilize dovetail or existing screws on top of the receiver for installation. They are made from an aluminum alloy that is stronger than many steels. Designed to be light and rustproof with Williams quality throughout. Image is a stock photo, which shows the quality of construction and the general appearance of Williams Sights. The actual item for sale may differ in appearance to provide the proper fit and function. Made In U.S.A.