Just a question for those of you with more experience than I have. I bought a MP .40 a few months ago and I love it, however, I have noticed that the front sight is very loose. I can actually remove it and put it back with almost no force using just my fingers. I am thinking of getting an aftermarket sight for it anyway and was wondering if this is something I should have looked at before I get the new sight, or will the new sight fit properly? Also, what aftermarket sights will work with the factory rear sight? Any insight and wisdom is greatly appreciated.