Comp-tac now offers XD(M) slide holsters for 9mm and .40S&W version. These are not for Springfield XDs.
The Springfield XD (M) 9/40 Slide is made to fully cover the 3.8 while the open bottom of the holster allows for the 4.5 and 5.25 versions to "slide" through. This model is available for all of our full-size holsters except the Diva