I've got a Euroarms R&S I picked up a little while ago and the hand isn't operating, it likely needs a new hand spring.

I can't seem to find a source for them. Kranks don't have them, even S&S in the US are out:
https://www.ssfirearms.com/proddetail.asp?prod=RS36

I see references to a bobby pin repair but don't know what this means other than possibly using a bobby pin as a replacement spring?

Any sources for a replacement before I try to fudge it?