I'm interested in getting a higher visability front sight for my Persuader but am unsure what my options are. I was looking hard at the replacement barrel with the ghost ring sights but the barrel length is wrong, mine is a 20", 8-shot. They do have a replacement barrel with the rifle sights, could I just take off the rear rifle sight and replace with the ghost ring. They also say the 500s need to be drilled and tapped for the ghost ring sight but I've got a pair of screw holes both in front of and to the rear of the ejection port so I'm guessing mine is already done. Is there just a more visable front sight that can replace the small brass bead this one wears. It looks like it would just unscrew and maybe a large (more visable) bead could be added. What about a screw in night sight? Just looking for options (non-gunsmith). Thanks, Monty