I have one that I recently acquired, and playing around with the idea of having the barrel cut down and threaded for a suppressor. I've never done this before, but have an idea of the process from looking around on here and on the ATF website. Has anybody done this to a GSG-5? Would you consider it "worth it", or is that too much money to invest in a rimfire that is only for plinking fun? Never had a suppressor either, so looking forward to that as well.