Wasn't worried about magnetizing the metal, was more concerned that if it was that strong of a magnet if it could stretch the spring on the firing pin or possibly mess up it's alignment. Also my thoughts were towards a handgun... while I'm not sure if that would make a difference, I guess that's why I'm asking questions. I'm not going to get any accessory for my firearms without laying all my doubts to rest. Don't mean to sound snippy, but overthinking isn't necessarily a drawback when it comes to safety. Last thing I would want is my home defense weapon to go "click" when it was needed.