As the title states: I have a Mossberg 590a1 with the XS ghost sights. I know the heat shield (16335P) is designed to be installed on a 590a1 with the bead sights, as the shield needs to slide over the barrel from the muzzle end. That said, I've seen more than a few pics and threads about 590a1 owners (with Xs or ghost ring sights) who have somehow managed to install heat shields. Does anyone here have any suggestions on how to get the shield on without totally screwing up the finish on the barrel? The only option I can come up with is to stretch the heat shield rings to fit over the barrel from the top down. Has anyone tried this? Feedback would be great!