It was easy!
>Spray and soak old sights with oil before starting.
>Take the slide off of gun, put in vice
>Remove rear sight set screw, secure/catch rear spring when tapping out rear sight
>Use a brass punch and a regular hammer/mallot to tap old sights out to the ejection side of slide (it takes a few good whacks to free them up at first)
>Then reverse those steps to install new sights