colt python night sights

I am looking for 3 dot night sights for my 4" colt python. I used to have a 2 1/2" python that a gunsmith put night sights on some years back but I sold it. I have not found anything on line, except $590 Trijicon CR15 sights, and I didn't pay anywhere near that before, and don't remember the brand. Optics Planet says they carry any Trijicon ever made, but I have not found it listed. Any suggestions?

Trijicon no longer offers Gold Cup/Python sights. They were discontinued years ago. Nobody else we deal with offers these sights. I am told that a company called Kensight offers night sights for both Elliason and Bomar adjustables. Click on the link and give them a call.