Gun manufacturers made 4,720,075 pistols in 2017, the largest portion of US gun manufacturing. In 2016, 9 mm models were the most popular among manufacturers.
US gun manufacturers made 4,239,335 rifles in 2017. Sixty-two percent of gun owners say they own a rifle, according to Pew.
According to Pew, 72% of all gun owners have handguns, and 62% of those who own just one gun have a handgun, which includes revolvers. But US manufacturers don't make nearly as many revolvers as they do pistols, with 856,291 revolvers to the 4,720,075 pistols made in 2016.
US manufacturers made 848,617 shotguns in 2016. Shotguns are still fairly popular with people who own multiple guns — 54% of them told Pew they owned a shotgun. But of people who own only one gun, just 16% of those polled told Pew they owned a shotgun.
People own more than just pistols and rifles; they also buy machine guns, silencers, and other kinds of weapons designated under the National Firearms Act. These weapons must be registered by their manufacturer or importer with the Treasury. There were 5,502,474 such weapons registered in the US as of February 2018.
But there's a lot the ATF doesn't tell us. It doesn't say to where US makers export weapons, and it doesn't say how many people in the US own different types of guns, because gun owners aren't required to register their firearms at the federal level or in every state.
But Americans own by far the largest share of firearms for civilian use compared to residents of other countries, with an estimated 120.5 firearms per 100 people in 2017, according to the Small Arms Survey.