ToddJ - May I suggest that you open a new thread.
This one was last answered in 2012 and could be called a zombie thread.
Now to try and answer your question. The firing pin does not normally come out. The diagram makes it look like P/N 3 does double duty of extractor and firing pin holder. I would not advise you to work on it if you have limited experience.
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Former President of the ECPT (Eifel Combat Pistol Team)