The number of retail gun dealers in the US, as of October 2012- increasing by 3,303 licensed retailers since 2009. In 2010, the number of retailers increased for the first time since 1993, the year before Congress passed a federal assault weapons ban (which expired in 2004).
The country’s largest firearms retailer is Walmart, which resumed the sale of firearms in mid-2011 after a five-year hiatus.