WV, There is a Lyman 66 peep sight on EBAY right now. They are fully adjustable, just like a scope. They are much easier on the eyeballs than buckhorns.
In the meantime, most buckhorns are on a ladder for height adjustment. As far as left & right, unless the sights have been bumped they shouldn't be far off. If they are, they can be tapped with a brass punch in the direction you want. Good luck and if you change your mind about keeping it, let me know<img src=icon_smile_wink.gif border=0 align=middle>.