"We load 'em all up and put them on the big conveyor belt and [they] get destroyed."
McDowell said anyone who wants to report a gun or discard of one should call police.
"If you do know someone that does have firearms that they're not supposed to have or you want to surrender them yourself, you're more than welcome to give us a call.
"We'll come pick 'em up, or you can bring them into your local police station."
McDowell said when handing over a gun to the police make sure they are wrapped up discreetly to avoid causing alarm at a police station.
"Do whatever you need to just so we can handle them safely. Just make sure they're unloaded and everyone is safe to handle that weapon."