Firearms personally owned, including revolvers, pistols, rifles, shotguns and black powder pistols and rifles. I think a current estimate of the number of firearms in the U.S. is around 250 million or so. Then it occurred to me that many people own more than one firearm for sport, hunting, competition, etc. I realize other folks have gun collections, gun shops, etc. so I am referring here to what you personally own and have at home or in your car and are in firing condition, so that would leave out my old Sharps.