XDS 4.0 Uses Same Sights As all Other XD's 

By James Nicholas 

I installed some Truglo TFO sights on the new XDS 4.0. When I removed the rear sight I was able to confirm that the 4.0 also uses a "G" sight set. This means that most current aftermarket sights for the XD, XDM and XDS will also work for the longer barreled 4.0 pistol as well.