The gun store and range that I frequent in St. Louis wants guns holstered when entering the store. No issue with OC or CCW. They just don't want people displaying their guns while waiting for range time. If you want to look at someone else's gun, you just go up to one of the counter and put the holster on the counter and one of the empolyees will remove it, check it for empty and you are good to go. All of the employees OC.