Yep, I had someone who worked at one tell me how many problems they had with people trying to shoot ar’s without sights on them. He had a bunch of other horror stories as well. The ceiling tiles though at the ranges say it all. So much damage from where people have shot them.
To be fair the range officers can be pretty stupid as well. I had one talk to me because I wasn’t leaving the action open on an open bolt machinegun(m10). I told him I left it forward as it was open bolt and he said it didn’t matter it was for safety… Somehow leaving an open bolt gun in the ready to fire position which also has a well know bad safety design is safer. To be fair one of their range officers asked another time if the m10 was an uzi. The range rents a full auto uzi…