Trijicon Bright & Tough Night Sights are three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights. They are housed in a metal body, cushioned within silicone rubber, and feature a unique shock-resistant design. Each lamp is capped with a sapphire jewel to help evenly distribute the light while protecting the lamp from solvents and puncture. It is contained within aluminum cylinders for additional protection. This night sight set is taller, designed to work with a suppressor. It fits Springfield Models: XD, XD(M), XD Mod. 2, and XD-S.