H&K overengineer things? Germans? Nah...
It's not quite as bad as it sounds, but the roll pin must be removed, then everything comes out in short order, but it's getting it back together that is a pain. It can be done, but it just takes some fidgeting. I don't have any problem with too strong. Heck, that's why the H&K will even digest .45super rounds no problem (the Mk23 anyhow). If you don't have a punch set, there are substitutes for removing the roll pin. Let me know how it goes of you decide to go ahead. Oh, and the extractor recess gets a lot dirtier a lot faster than does the firing pin recess, so you can practice removing the roll pin there and get a dirty area to boot.
John