Where else, but a gun show, would you see a man with an oxygen tank pushing a walker and wearing a sign trying to sell a Chinese AK-47 ($845) and an Albanian military rifle ($695)?

Or where else would you see a spread of folding tables displaying survival knives, machetes and T-shirts reading "Zombie Outbreak Response Team?"

America is teeming with gun shows: Dozens every weekend, in every region of the country from Texas to New York, California to Florida, Maine to Washington. Dealers gather to display guns and related products under one roof. Enthusiasts travel from far and wide to attend.

CNNMoney visited one gun show in Harrisburg, Pennsylvania, to witness the scene first hand.

http://money.cnn.com/2015/10/26/news/gun-show/