You can do either as long as you unload your gun before you get to the building (might be a good idea to have your LTCH on you just in case). There are IMPD there that will put a zip tie through the ejection port. That "unload you gun before you get to the building" is a critical point - there are signs all over the entrance and the folks there are very serious about it. I was there last night and I bet 3 different people asked me if I had a firearm before I even got past the entrance. Have a good time if you're planning on going - there's lots to see and some deals to be had.Are we allowed to CC or OC at the 1500?