The .105 W x .180 H is a professional front sight for those who want a narrower and taller from sight than the factory fiber option. The 0.040" fiber optic compared to the factory 0.060" gives you a finer sight picture. Factory sights measure 0.125" W x 0.150"H. The .180 H x .090" W produces an even finer sight picture. A front & rear sight combo to replace your Tanfoglio Match factory sights. The Match Fixed Target Rear Sight features a 20 degree undercut blade which provides an optimal black rear sight reference. In most sun light conditions you will quickly pick up your front sight against this black rear sight specifically d Mfg: Henning Group