New gun for me. Feeding issues

[leucoandro]

Hello
I just got my first Luger.
It is a 30 luger though (the guy I had ordered it from said that it was a 9mm)

I have to replace the breach block, as I have the same condition you have, except the firing pin guide pops out on mine.
My pistol also does not hold open after the last round is fired, but it does when opening by hand on an empty round. It also stove-pipes, it is worse with the aftermarket mec-gar, the mec-gar binds when fully loaded. also if you put any pressure on the magazine when firing it will jam.
When I took the pistol apart because it would not fire, I found that the firing pin guide would not stay inside the breach block, and that the inside of the action had alot of oil that had aged into almost a greese. I cleaned the parts that were not blued or have straw in jewelry cleaner to get all the old oil out. after I get a new breach block I will be able to see if this made any improvements