These are the BEST fixed sights on the market for the XD. These fit the XD and XDm and are meant to go with the Dawson Precision rear fixed sight. Not only used by the some of the world's best shooters, but also a great choice for duty and recreation use. Dave Dawson is one of the best sight makers in the country and stands behind his products and is our first choice for sights. Take your choice from target (black), fiber optic, and tritium sights and you can chose your sights widths too. Don't be afraid to mix and match as your vision dictates. These fit the XD and XDm and are meant to go with the Dawson Precision rear sight. * Tritium sights are only available in .125 width due to the width of the tritium vial.