Received a set of Trijicon HD's for my Walther PPS today.
Yay! Finally have my favorite sights on my favorite lo-pro carry pistol.
I think I prefer the Meprolight rear sight press fit "zipper" roll pin installation to the Trijicon slip fit with a set screw (especially since they forgot to send the set screw with my sights) but with a little Lock-tite and the set screw out of an old Shield rear sight I'm pretty sure it'll stay put OK.
Now I just need to hit the range and see what the sight alignment and zero looks like.