I found this S&W 586 with 4 position front sight at a Cashman show several years ago. The gun had been used in some sort of competition but had been maintained will. I had a 586 with 4 position front sight I shot NRA Police Pistol matches with and missed mine after I sold it.
I love me some ICORE. I did one in Mesquite a couple years ago with Jim Bianchi. It was a good time. But the Boulder one has been conflicting with ViMSAR. If they move to the 3rd Sunday, I'm probably in most months. Thanks for the update!