just a heads up. i have been talking to meprolights about their night sights. i have an xdm 40 bi tone and they said not to buy the sights made for the xd models for my xdm. they said this. "The XD and the XDm sights are quite different. The XDm sights are different heights and also the rear is a longer low profile sight." these new sights are coming out at the end of august, thats what they told me. i know i wont buy a sight unless its specifially for an xdm now that i know there is a difference. just figured id share this info with you and hopefully save you from the mistake i almost made.