I absolutely love my PPQ 22lr, but the rear sight is junk. Mine broke within the first couple hundred round of use. So...
...I made my own. It was printed on my Ender 3 printer using PLA plastic. I published it to thingaverse for anyone to use (
https://www.thingiverse.com/thing:3999234).
My gun also shot high, so I adjusted for that when making a new sight. The thingaverse files include 5 different height sights. I ended up using the second from smallest.
Hopefully somebody else here can benefit from this as well.