I'm looking for a kit (or separate parts) to update my 1971 Slavia 620. Specifically, I'm looking for a new synthetic piston seal and spring. airbuddy3 was advertising these a few years back. I've sent an email to the address he posted with the advertisement, but have not heard anything back.
I've read that the parts in question may be interchangeable with the 631. If that's true, and anyone has any leads on parts for that gun, please let me know.
Thanks for the help.