States Where You Can Buy a Gun at a Gun Show Without a Waiting Period or Background Check
In the following states, private sellers (non-licensed individuals) at gun shows can sell firearms without conducting a background check or imposing a waiting period:
Alabama
Alaska
Arizona
Arkansas
Georgia
Idaho
Indiana
Kentucky
Louisiana
Maine
Mississippi
Missouri
Montana
New Hampshire
New Mexico
North Carolina (only for rifles & shotguns; handguns require a permit)
North Dakota
Ohio
Oklahoma
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
West Virginia
Wisconsin
Wyoming
Virginia implemented a universal background check law a couple years ago that banned private sales without going through an FFL so they can be removed from the list. Though I'm not sure about the other half of the country