We used to have a medium sized gun shop in Minneapolis, MN until about the mid-1990s, then they closed it. I only went there a few times looking for hard to find items. It was on Lake St. in a really bad neighborhood, I had visited it a few times, bought some used holsters there. It was really scary to park my truck on a side street, then look hard at the people around me in case they started walking toward me, then when you opened the front door of the store, you had to stand in a steel barred cage before the shop clerks would buzz you in, or not. The clerks had an elevated platform behind a counter to physically look down on people, and as I recall they had holstered handguns on their belts.
When I heard they were closing for good with clearance items for sale I went down to look for a bargain. I heard a local man yell that he was being discriminated against, as the shop clerks would not sell him a gun as he had a felony record which he admitted to while filling out the Federal yellow form 4473, man that fellow yelled, stuff like I will sue you, discrimination, etc. Lots of scary looking people hanging around outside, no wonder the place closed.