Ya look them squarely in the eye and say, "You say GUN Nut like its a BAD Thing. I wonder why? We Gun Nuts don't call you anti-gun nuts "Anti Gun Nuts". Mostly we call you sheep. Were the Founding Fathers of this nation gun nuts or sheep? When you're in a fight for your freedom would you want a bag of wool in your hands or ... a gun? You do know that 'Freedom' isn't a door prize, and yes, sometimes wack jobs get their hands on a gun and wreak havoc. So pardon me while I repeat myself here, if ever confronted by that wack job, would you want a bag of wool in your hands or ... a gun?"
"GUN Nut. I like that. It's... original."
Then listen to them rant on with an amused smile on your face, knowing all the while that their argument, while interesting, proves nothing and know that you could kick their butt with facts and figures all day long.. and it wouldn't make one Iota of difference, because they're sheep who bleat emotionally and refuse to think at the same time, all the while depending on others for their self preservation.
I hereby publicly apologize to the genus Ovis... some of those Rams can be pretty bad boys when they want to butt heads or climb cliffs. A very handsome species as well.