I'm 100% behind Kiwi on the 3 in 1 oil, I've used it for as long as I can remember! I put a drop on every part that moves or pivots or slips off of one another, and then set the luger on it's back for overnight. Next day, all the excess oil has settled to the top (yes, I know, top is bottom until I make it the top again!
) and just wipe away the extra oil tha has migrated down. Works great, no muss, no fuss... range ready..
The only areas that need special attention, as to actual cleaning is/are the extractor, and the firing pin! Good luck to all, til..... lat'r.....GT...