Yup, they are the same as Black Hawk sights. I picked one up from a friend of mine used and in good shape. He bought it for 175.00 a few years ago at a gun show and sold it to me for the same as he paid. He said when he saw it for that price He knew I would take it off his hands.
Gave it a trigger sear/hammer stoning and took two coils off the trigger return spring and it is now a target quality shooting machine. I don't think I have ever heard of a ROA that was not an accurate gun. To bad they quit making them. MD