why modify it? what is the purpose or gain? IMO, buy a pistol without it in the first place as there are many out there without it. if it's strictly a range gun or target pistol, then go for it. if it's a carry pistol either leave it alone, or buy a pistol without the safety. any mods you do to a pistol, could be used by a lawyer to show that you are negligiable and unsafe if something were to happen.