Hmmm, that doesn't sound right. I've got a Baikal that I picked up in 2008 that I just used for several projects
this last year in gunsmithing school. I ended up tearing it apart twice, and in the process slicked it up so it's
a lot better. I never ran across any parts that were welded in. In fact, all of the schematics/diagrams show the
hammer pin as a separate piece.
Yes, it can be slicked up. Mine is nowhere near as bad is it was when it was new.