I had a stainless MK II bull barrel and now have a target slab side MK II with a dot sight built like a scope. If I had to do it over I'd get a Docter Optic dot sight and a mount for a MK II and kept the bull barrel. I liked the feel of the 5.5" bull barrel and the Docter Optic sight weighs so little it would still be as handy for hunting.