Dawson has various widths, they just aren't available in all heights. For example, I decided I wanted to try a .125 front on my Legion. That width wasn't available in a .240, but it was in a .250. No problem with that because the Legion has an adjustable rear.
I call them and have always received knowledgeable help, plus I have made liberal use of their exact impact guarantee, with nary a squawk from them.
They are my first stop for pistol irons.