Blank pistol ME 9 model Para - please read!

"James Bond's service weapon until the mid-90s"I am offering my gas blank-firing pistol ME 9 model Para in the original box and with the original receipt - the  holster is included. WARNING  :   Payment ONLY IN CASH    !!!For pickup cash - for shipping also only against cash, either via Western Union (please familiarize yourself with the procedure) or by regular mail in a registered letter!Now for the description of the pistol:After every time of flawless use, it has now been in the safe for a longer period. When disassembling, the small pin shown in the picture fell out, probably the firing pin (as marked in red in the photo). I can put it back in there, but it doesn't stay and falls out again during use. It must also have something to do with the trigger, as it has not been functioning properly since then. An expert can surely fix this small flaw easily.In the meantime, this great pistol model has become a sought-after collector's item!