Just a friendly reminder. Hopefully you are already on top of it, but I regularly wipe down my EDC as anyone who carries knows just carrying gets all kinds of dust and whatever on the weapon. But I have NOT been doing the same with my spare mag. Just pulled it out and Whoa!!!! (see pic), would hate to insert that mag in a bad moment and it be the cause of some kind of failure. Anyways just putting it out there. Be safe.