Depends on what what model of the ROA is. The fixed sighted versions will go for more, the more common adjustable sighted ones for less. I paid around $400 for my Adjustable sighted revolvers (NIB) and $600 for my Adjustable one. That was a couple of years ago now. Going rate? Got me, but that is what I bought mine for. At a gun show last year I saw a pair of SS ROA 5 1/2" fixed sights going for $800 a piece.