I am confident that the "evil black rifle" part will get you noticed.....and not in a good way. carry as you see fit, but just as a AK "pistol" is not what OCDO advocates the carry of, unless you have a holster for it, so too is the AR "pistol" not something OCDO would advocate for. I do know what the owners think and I certainly am giving my opinion.
Wasn't there a dude who got hassled for his AK pistol. He was jerked around, unlawfully in my opinion, but, the times they are to be considered. Self infringement is not what I suggest, but common sense for your jurisdiction is to be considered......if anything to protect your bank account.