The lock in my old Dixie flinter busted. I built this rifle from a Dixie kit back in the 80's. I'm thinking it was called the Dixie Pennsylvania or something like that. The sear and tumbler were getting pretty buggered up and the half cock would only hold about half the time. I took it apart and filed a new notch in the tumbler, cleaned up the sear and re-hradened them. it's better but now the sear spring doesn't have enough travel to reliably hold the sear in the tumbler. I tried adjusting the spring and that's where my luck ran out and I busted the sear spring. I went on-line to the dixie web-site to see about spare parts and didn't have any luck. I ordered the catalog in hopes I'll have better luck there. I really need a new tumbler, sear and spring. I'm hoping I can get direct replacements rather than buy something generic and start filing. Anybody have any idea about how far back Dixie goes with spares for their locks?