First, if you can provide any solutions to my dilemma I would greatly appreciate your assistance. I have primarily lurked on various firearm boards, as I didn't believe I had much which I could contribute. I now find myself posting to several with this question as I am simply running out of ideas. So here is my issue with some background for context. The first handgun I purchased was a Taurus PT99 AF-D in the very early '90's. It has only had a couple of hundred rounds through it, before there was a long hiatus in my shooting opportunities. Over the years I have installed an upgraded trigger spring, and a "DAO" hammer spring. I still enjoy the pistol immensely, and it is the pistol I use to introduce center fire semi-automatics to friends and family due to the low perceived recoil. I really do not want to give up on the weapon, but I now have a problem which jeopardizes its continued use. In the 2010's I was again able to start shooting with more frequency. After an additional few hundred rounds though the weapon; I discovered after returning from a range trip that the rear sight of the pistol had broken. The PT99 has an adjustable rear sight. The rear sight consists of a body pinned to the slide at the forward end elevated by spring and screw. Windage is adjusted by means of a sight blade which is moved with a screw through the sight body. The slide does NOT have a standard dovetail. After a quick Google it was apparent that broken rear sight blades are a common issue with this weapon. Unfortunately, sights are one of the items not covered by the Taurus warranty. I have also been unable to find a replacement sight. Numrich is out (Item 12 at http://www.gunpartscorp.com/Manufacturers/AutoPistols-42262/PT-99-35236.htm?page=2). I have written Taurus but they have not responded however; several years ago board posts indicated Taurus was no longer able to supply spares. I am now to the point of asking the firearms community for solution ideas. I have searched for a similar sight for which spares are available, in the hope I could cannibalize the sight blade, so far to no avail. (I had hoped this http://www.brownells.com/handgun-pa...-assembly-complete-rear-w-bump-prod12177.aspx might provide a solution, but it appears to be a dead end) I am now considering trying a sight blade intended for a S&W revolver. After months of searching the Internet and gun Boards I have not really found a workable solution for me, and I am now reaching out to this community. The weapons value doesn't support expending much to solve the problem. Any significant professional gunsmith work is almost certainly cost prohibitive, which leaves the solution down to what I can perform. I have seen posts which suggested that someone was able to fit an adjustable rear sight from an H&K pistol, but too few details were given for me to assess the post relative to my situation. If someone "out there" has found a solution to this problem which can be implemented by the average mechanically capable gun owner, I would love to receive your feedback. Thank you.