Glock will inspect the pistol,replace any parts that need it,refinish the slide and mail it back to you for $45-at least I don't think the price has gone up recently and you need to ask to have the refinish done.It's quite a good deal-wish SIG would refinish slides for $45...-but I decided to "refinish" my own G19 with Scotchbrite when there was more holster wear than not on the slide.Since the steel itself is treated,rusting is not a problem and I think it makes for a nicer looking Glock,not that any Glock is particularly nice looking.