Luger

Don't get a WE one as they wear quickly.
With a brand new magazine I loaded it and I almost shot my wife in the face.
Upon insertion it emptied the magazine full auto without me ever touching the trigger.
It was not used excessively either.
Upon further reading a couple of small parts wear out quickly supposedly if you replace them with Tanaka parts you're good to go but good luck finding them.
Hope this helps.