In some areas of Michigan (urban areas, uh ya know?), I think that might be prudent.
But truthfully, I don't think an evil black semi auto military grade rifle would be my choice. I'm thinking a nice Remington 870 shotgun, loaded with #4 buckshot might be preferable. A little extra of the good old intimidation factor.
Detroit is open carry with stand your ground laws and a police chief who encourages armed citizens to defend themselves.
Here is the police chief’s weekly report for the week ending on the 7th.
I like his attitude. He says criminals will continue to shoot each other and he’ll investigate those shootings but won’t waste more police resources than absolutely necessary. He says criminals don’t cooperate anyway.