While I can't disagree, there is also no reason that sig should use one sight dovetail, Glock a totally different setup, a Beretta another, and at least two major types used for 1911s. There is no standard in the industry, so it makes no sense to complain about one manufacturer not sticking to something that doesn't exist. I have the same argument about mags. I'd really like my double stack 9mm 92 mags to fit Glock, a sig, etc.