I was told Kreighoff quit making RT Parts and they no longer repair them, You need someone that has spare parts, So you can tell them what you need. GB........................................DLS
Krieghoff does have some parts for the RT triggers. Call them and talk to I believe his name was Elmer. Some parts they will not sell though being trigger parts and requiring fitting, which means liability. They may still be in Covid mode. Elmer would answer to emails from outside the shop, and go in to fill orders occasionally.