Thanks for your comments and sorry for not being clear: The gun is unusable and there is really no way to bring it back to life (If you are really interested I can describe how this was done, but that's kind of gun-horror). The story behind these is simple: If only few people are allowed to own few guns, there is no market for cheap or outdated guns. So people hand them in for destruction. The alternative to melting them down used to be to deactivate them by converting them to blank firing guns. This way you find an idiot (e.g. me) who pays for the destruction instead of the government.
For some ridiculous reason, this kind of deacts will be banned now, and it's not clear what will happen to them.
However, I didn't post this to discuss gun laws but rather to discuss this piece of history (in case there is anything interesting) before it will be gone completely.
