Has the 1999 receipt and cheesy little pamphlet telling how for over 50 years it was taken from storage, cleaned, tested, and repacked for storage until honorably discharged. Just need to find instructions how to take it apart. I’m sure it’s not too complicated just don’t want to break anything in the process. Kinda cool piece of history even though it never saw actual battle service. One thing about it is everything is tooled no stamped parts. Those Germans new how to build things, then sold all the machining equip to the Yugoslav’s who stockpiled a bunch of weapons built with that equipment.