Please refresh my memory on how to remove/install the rear sight blade on a S&W revolver.
As I recall, you turn the windage screw clockwise until the sight comes all the way to the right and the adjustment screw snaps. You use a new nut and adjustment screw for the new blade...but that's where my memory goes fuzzy. I recall at some point you have to use a punch on the new nut to lock it to the screw...I think.
Please help me fill in the blanks. Thanks.