I have the new M&P Bodyguard and the mag hangs up on the release button when I insert it. I've read that it can be beveled with a file. I'm very mechanically inclined and detail conscious but have never done any DIY gunsmithing so I'm not sure where to start or if I should attempt this myself. It looks to me like there is a U shaped spring that would need to be removed with a couple of picks. Any input? Thanks in advance.