I know borders here in boyd county can install night sights on sigs and glocks, I would say that they can on m&ps as well. I am going there in a lil to get some ammo., I will check for you. Im in pretty good with these guys and I would say I could get you a good deal. All they do is put your slid in a tool that pushes your old sight out and then put the new one in. btw, has ne one said ne thing about meeting up, or is still just us?