[Ron Wood]

MCNJ
There is no wear on your Luger. When you lock the breech open (using an empty magazine and the holdopen) you have taken the receiver out of battery just as if you had pushed on the barrel. (You are using the procedure posted by Lugerdoc) It is just a bit more involved because after you have rotated the takedown lever you then have to drop the magazine while holding back on the toggles to allow the holdopen to release and then slide the receiver off the frame.

With the gun UNLOADED and the magazine out of the gun, us oldtimers usually just use our right hand to wrap our thumb under the rear of the frame with our fingers over the top of the toggle knobs and squeeze...this draws back the barrel/reciever group, then rotate down the takedown lever with our left hand. Quick and easy and you aren't going to drop anything or scratch the barrel.