ok brain trust, I need your help. My dad has an old West Germany Herter made SA .22 that is light striking the primers so I ordered a new main spring from Numrich, hoping that solves the proble. In anticipation of it arriving I removed the plastic grips to find one has broken. Numrich does not have the Herter grips in stock so I ordered a set of Hawes grips. I’d like to have a set of Herters since I know they will work. Anyone have other parts sites I should look?