I don't think I ever received the spy's defense weapon at the end of the game. I'm sorry for the lack of detail, I just don't know what else there is to say.
Hi, awh. This sounds like a question for support@pirate101.com. In your request, be sure to include your log in name (no passwords please!) and the name of the character that lost the item, as well as how they received and lost the items (or never received in your case).