I had this posted in another forum and this is new rifle. I happened to used the no spacer and screwed a little longer one on the bottom (M5 x 35 instead of M5 x 25) and it pierced right thru the plastic housing. It also stocked the extra mag . After use of 4 hands I was able to removed the mag but found the screw has penetrated the housing. It will not unscrew as it become loose thread. I called Walther and they said tech will be out for a week or two, seems like they always say this on the phone. Earlier yesterday I called Walther and person said the plastic housing holding the buttshould be removed in order to do this. The one holding it is the butt sling hole. How do i do this, it seem to call for some special tool?