I own an LP500 and you can pull off the "LP500" and "Walther" from each side of the barrel. Use GooGone to remove the adhesive. It is a great pistol, noticeably better than Morini, Pardini, or Steyr Evo 10e.
I have a LP400 and the only thing I don't like is that the threads of the cylinder are subjected to the full pressure inside the cylinder when it is unscrewed. I have applied a lot of lubricant ( Krytox GPL105 ) to the threads but still the wearing is very prominent. A black layer of metal powder covering the threads is seen everytime the cylinder is unscrewed. Do you guys have the same experience ? Are there any ways to reduce the amount of wearing ?