I have an old (1920s?) side-by-side 12 gauge remington that is in need of that V shaped spring that helps control the lever to break the barrels open. Where can I find older parts like this? I am currently trying to shave a spring that is close in size but I will have to drill a hole for the larger peg to fit and I'm not thrilled about that. So if I could find a direct replacement, that would be great.