Just yesterday, I picked up a totally unplanned S&W 3rd Model Hand Ejector in .32-20. It is missing the spring-loaded bits that ride in the barrel lug to retain the ejector rod. I cruised through Numrich but, due to a lack of diagram and pictures, just got confused as to exactly which parts I need. What are these parts called in S&W world? Also, if you have an idea where they might be sourced, I would appreciate it.

Thanks!