.45 caliber handgun

Former Congresswoman Gabby Giffords and her husband Mark Kelly are joined by survivors of the Tucson shooting as they call for Congress and the Senate to provide stricter gun control in the United States during a news conference on March 6, 2013 in Tucson, Ariz. (credit: Joshua Lott/Getty Images)

Mark Kelly Buys AR-15 Assault Weapon, Handgun

Mark Kelly, husband of former Rep. Gabrielle Giffords, said Monday he recently bought an assault weapon in Tucson to make a point about the ease of background checks for gun owners.