I have an origanal GSG5 PK, from before they were sued by H&K. It was a great gun and a lot of fun to shoot. My problem is that after about 2500 rnds it stopped going bang. I've taken it apart and can't find anything obvious missing or broken. I can't find a local gunsmith who will work on it either, so it looks like I have a nice looking,used to be fun broken toy in my collection.