How do I make it so only I can spawn my guns?

I made a few guns, and I added them to my server, but I wondering, how can I make it so if another rank (superadmin, etc) tries to spawn it, they either can’t, or they get slayed when trying to do so. I don’t really want to disable adminspawnable. Also, is it possible that after they get slayed it could display a message in their chat?