I recently purchased a M&P 15-22. I have seen a video of removal of the takedown pin for cleaning and it seems you should be able to just push it through using your finger. Mine will not budge when I try to push it through. I am stronger than most people but I can not move that pin at all. I have to use a wooden dowel and strike it with a hammer to push it through. has anyone else experienced this and can I cause any type of damage ? Thanks