Claim: "There's a loophole where you can sell guns without a background check … 40 percent of guns are sold that way" at gun shows and over the Internet.
Fact-check: Mayor Michael Bloomberg says 40 percent of guns are sold without a background check
Verdict: half-true
Organisation: PolitiFact
Author: Jon Greenberg;Molly Moorhead
Date published: 2012-07-25T00:00:00