Hi,
Dont know whether this is of any use (probably not).But a little while ago i saw about 5-8 pistol iron sights released on the ofpgamezone.cz site,i think they were just the textures (no models).But it did say they were made for the y2k3 mod.
If you do try and locate these and you are having trouble just get back to us and i will help look in the archive on ofpgamezone.cz.If not no probs.
Hope this helps somehow.
I was sort of hoping someone would make models for them,i have tried myself but its a bit out of my league (more for the clever people).
Dan