Ithaca5E, the miscellaneous adjustment features that you say you have not seen on any Lefever are not a neccesary part of a reproduction gun. The main adjustment that would be included would be the ball/socket assembly. The other adjustments are not neccesary or even desired. Early side cocker and pivot lever guns don't have much of this stuff and mine are all still running strong and still tight. I see no way I could put enough rounds through one to wear it out or loosen the breech.