I'm thinking of selling my morning star to a mentally unstable criminal.
Why do you have that in the first place? You are serious about this, aren't you? Selling this weapon to a criminal?
Hell yea , it's my dream weapon since I was kid
If it's your dream weapon, why don't you want to keep it? Anyway, selling weapons to a dangerous criminal is bad for many reasons. You could be punished for what they might do.
I also wanted to add that a 12 year old is not allowed to buy backswords in California
That's an interesting fact, but it doesn't hide that you want to do something really dangerous. I believe you should just keep it to yourself as a keep sake, because selling it to a criminal would make you an accomplice if they did something horrible. Wouldn't you rather know that you're doing a good thing by not enabling them?