Well I finally got around to installing my Trijicon night sights!! My first attempt was on my XD and that was a horrible experience. I bent the screw on my sight pusher and put a slight nick on the front of the gun. But after learning from my mistake, and shelling out as much as I did for my sight pusher (Hillwig) I decided that it was time to install them on my XDS. This time it went very smooth, and I was able to get my sights installed with very little effort. To anyone who is going to install Trijicon night sights on a XDS I will say that the ones for the XD and XDm fit, but the end of the rear sight seems to hang off the back of the gun, and sits a little to high. I will see how it is at the range and what it does, as far as hitting the target. I was shooting a little left with the factory sights, so time will tell with these. If I had to do it over again I would strongly recommend getting the Trijicon night sights for the Sig 228. See youtube videos on that. When I first bought the sights for the XDs I went on a bunch of websites and read that the ones for the XD and XDm would fit unfortunately I didn't install them right away, so returning them was out. Live and learn, and if worse case scenario, I buy the rear sight for the Sig 228 and install it. How about any one else, have you installed the Trijicon night sights on for the XD (part number SP1010/600581) on your XDs and how does it shoot?