I know $40 sounds high plus postage in and out (which you can just sent the slide regular mail and save big time) but if you dont' have a good sight pusher and most of the sight pushers willnot do very wellon these small guns like this P380, then indeed let kahr do it and do it right.. a smitty would charge you at leat $25 bucks and who knows how he willget that old sight out to.. they are damn near welded in placed.