Let me use your same logic on the ultimak to make it inferior to the MI.
Ultimak is to long and has to much rail for my likeing = inferior
Ultimak is know to over heat and smoke optics = inferior
And as far as co-witness goes, I care not to even have my optic on the gas tube I like mine over the receiver where it belong's.
Haha damn you got him there. Let me add to that:
Ultimak is heavier = inferior
Ultimak puts more weight farther foward on the rifle = inferior
Ultimak is over twice as much money for essentially the same thing = inferior
Ultimak means you have an EXPOSED ga