I don’t have a 69 yet but I do have a red on my 617-6 , green on a 629-4 and a -6 . I contacted S&W customer service via email to get the factory height which I wanted to stay with and kept my factory rear square notch . I like the hi vis sights and have a 317, 63, and a 329 thatcame with hi vis and v notched rear sight .