Yep!
Just for "fun" one day I carried my HK Tactical with weapon light in a Blackhawk thigh holster under an Australian drover coat.
I was just out to take the dog for a walk and it was raining. So I figured, why not?
I felt light Wyatt Earp.
About a mile down the road I thought, "Great, this is going to be the day someone attacks me and I'm going to have to explain to the state police that it was just a coincidence I had this rig on"
I did build a CCW rig for my Mossberg 500 pistol-grip 12 gauge once. But I don't think I ever actually wore it outside.