I actually have one of these. I haven't had it out in a while. Took it apart a few years ago. I'm missing a part to it. I think it's a spring that I'm missing, not sure which one. I remember downloading the same parts list you are showing. I hit up a couple gunsmiths back then but they were unable to find any parts for it. I still have it stashed away. I'll dig it out this wknd and throw a pic of it up.