It's the CV 25mm... Thanks! I didn't realize it was so simple. Unfortunately, I think I threw a couple other pieces slightly out of alignment, so I'll have to do it again.
For anyone who wonders what it looks like inside a CV finder:
The rearmost 2 elements are the ones that can go askew.
The rear element has the brightlines on it.
The element in front of that has the mirrored frame.