Anybody know of an aftermarket source for sights. Mine has a .150" but needs to be .190". I called Kimber today as they showed a .180" on their site, which would be a start, but they won't send one and told me to send the gun in so they can test the accuracy. Not going to happen as I've got a good one and who knows what I'll get back. If there's none available I just might have to machine one of my own. Thanks.