Hi-Viz Litewave Front & Rear Sight Set, Fits All Glocks, Front Sight Includes Green Red White Litepipes, Rear Sight Includes Green Red Black Litepipes GLT178 HIVIZ(R) Interchangeable Front and Rear Target Sight Set for Glock pistols. Fits all Glock models. Rear is .224" tall" notch is .140" wide x .125" deep; Front is .215" tall x .120" wide. Front sight includes Green" Red and White replaceable LitePipes; rear sight includes Green" Red and Black replaceable LitePipes.