Have a set of XS Express Night sights - Pushed them off my Sig P220 45ACP - Using a sight pusher, not a punch.
Looks like the sights are about two years old over all. Still in great condition - #6 front / #8 rear. Should fit any other Sig using the same height combination. Have all original documentation / loctite / package for them.
I think they're around ~80ish new, plus shipping or tax.
For usage / age - $45 shipped.