How do I know you're not a crazy person? Or that you won't have crazy moments (like most people do)? Or that you're not crazy, just evil, or megalomanical? Or just the kind of dishonorable person who thinks a gun can win an argument?
I don't want to have to arm or defend myself against any of those possibilities, just so you can satisfy your desire, which can easily be acted out in controlled areas; shooting ranges, hunting parks, gun theme parks etc.
Or better yet, you can examine your desire, understand it, dissipate it. Try meditating.