I was there last year.
Picture a small clubhouse (say, 40 ft wide x 80 ft long) crammed full of tables of gun stuff. Two aisles, basically in a circular pattern around the room, with gun folks elbow-to-elbow. Outside is a dirt parking lot with every inch taken up by parked cars/pickups - all free, of course.
Tons of parts and pieces, some old ammo dug out of the closet, paper targets, dummy rounds, books, holsters, pistols, rifles, shotguns, reloading supplies..... you name it. Much of it isn't worth much - just some fellow looking to clear out the extra's. The guys behind the tables are more likely to be good 'ole boys than commercial vendors.
Up front is the kitchen and a few small tables where people are eating a delicious, just-cooked breakfast, and the aroma is wafting over the entire room.
Here and there are little crowds of gun people huddle around some interesting bit of history, and marveling at how few are left.
It's certainly not Springfield.... it's just an old-fashioned gun show like grandpa used to go to.
YOU'VE GOT TO GO - AT LEAST ONCE - BEFORE THEY ALL DISAPPEAR.
My 2 cents...