I have a Kimber Pro carry 9mm and im interested in getting a fiber optic front sight to use w/ my fixed original rear so i am wondering what height i need to get because i am also contemplating later on getting an adjustable rear w/ either black serrated or fiber optics in it not sure yet and i know they call for a .180 front sight. So if i have to get a different size for an adjustable or a fixed i might go a diff route. Thanks for any help.