As others have said it should wear off with use. If you really cant stand it. I might try a Magic Eraser. Those things will get anything off. If you do, go very gently, couple scrubs, stop, inspect, repeat. Ive never used one on a firearm so... take it for what its worth. Just an idea being thrown out there. I know metal is alot different but, this girl I know used one on her kitchen chairs (wood), picture at the top where one would grab to pull in and out all the time, they kinda get greased from your hands/palms constantly grabbing there and took the finish off a little bit so, if you try it use caution