You may have forgotten that there is an airsoft version of the 9A-91 9mm assault rifle that is used by the Russian Police Forces but there is one built by the NPO AEG. It's usually available at RedWolf Airsoft, but it's out of stock. For owners of this AEG, the manufacturer has put out a video on how to dismantle it for repairs and maintenance as reference and a video to show you how to put it back together again.