Police investigating the capturing of UnitedHealthcare CEO Brian Thompson on Dec. 4, 2024, have introduced that the suspected assailant had used a 3D-printed gun. A number of high-profile crimes in recent times have concerned this sort of home made, or partially home made, weapon.
Typically known as “ghost guns” as a result of they are often onerous to hint, these firearms might be both partially or utterly made with elements which were produced in steel or plastic on commercially out there 3D printers. The U.S. Supreme Court docket is contemplating the legality of present federal restrictions on these firearms.
The primary recognized felony case involving a 3D-printed gun resulted within the arrest of a U.Ok. man in 2013. However since then, police worldwide have reported discovering rising numbers of those weapons.
My analysis focuses on the financial and social results of superior digital applied sciences, together with 3D printing. I see that using 3D-printed weapons in felony and violent actions is prone to proceed to extend. And it’ll probably show ever tougher for governments and police to control these firearms.
Surge in arrests and seizures
Arrests and seizures related to 3D-printed weapons are escalating rapidly. Between 2017 and 2021, U.S. legislation enforcement businesses seized and reported almost 38,000 suspected ghost weapons, in line with a 2024 report from the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives. In 2021 alone, 19,273 suspected ghost weapons had been traced, a big improve from 8,504 in 2020. The variety of seized 3D-printed weapons in New York state alone surged dramatically, from 100 in 2019 to 637 in 2022.
Arrests linked to 3D-printed weapons are additionally rising. The world recorded 108 arrests within the first half of 2023, in comparison with 66 arrests in all 2022.
North America leads in 3D-printed gun-related arrests, with 166 circumstances from 2013 to June 2023. Europe adopted with 48 arrests, whereas Oceania ranked third with 24 arrests.
The U.S. is a selected scorching spot, with 36% of complete international arrests associated to 3D-printed firearms in 2023. However Canada is shut behind, with 34%. The U.Ok. had 10%, and Australia had 8%.
Rising international safety menace
Police and media experiences point out that many efforts to amass or manufacture 3D-printed firearms had been related to plans for violent actions.
These weapons have been utilized by various teams together with far-right extremists, ethno-separatists, jihadists, left-wing anarchists, organized crime teams in Europe and pro-democracy rebels in Myanmar.
From 2019 to mid-2022, there have been at the very least 9 documented circumstances in Europe and Australia of extremists, terrorists or paramilitary teams both producing or making an attempt to provide firearms utilizing 3D-printing know-how. An evaluation of 165 circumstances of 3D-printed firearms from 2013 to mid-2024 reveals that 15% had been linked to terrorism. Far-right teams seem like probably the most frequent customers amongst terrorism-related circumstances.

The ‘Liberator’ was the primary extensively out there plan for 3D-printing a firearm.
Kelly West/AFP through Getty Photos
A extensively different authorized panorama
Typically, 3D-printed weapons are home made firearms with out serial numbers. This lack of identification makes them engaging to criminals as a result of it’s tougher for legislation enforcement to hyperlink particular weapons to specific crimes or suspects. Completely different international locations take very completely different approaches to regulating these weapons.
Japan enforces stringent legal guidelines governing the manufacture, possession and gross sales of firearms. Its authorized system strictly prohibits unauthorized firearm manufacturing, together with 3D-printed weapons. In 2014, a 28-year-old Japanese man was sentenced to 2 years in jail for producing plastic 3D-printed firearms.
In 2023, Canada successfully banned ghost weapons. It’s unlawful to own or manufacture them with out a license from the federal government.
In Australia, making a 3D-printed firearm is illegitimate, and in some states, possessing a digital blueprint to create one can be an offense. Within the state of New South Wales, an individual convicted of possessing blueprints can resist 14 years in jail. In Tasmania state, the punishment might be much more extreme – as much as 21 years in jail.
Throughout the European Union, making or proudly owning home made firearms, together with 3D-printed ones, is broadly prohibited. Nonetheless, legal guidelines and penalties range, with some nations criminalizing even the possession of digital information or blueprints associated to 3D-printing weapons.
Within the U.Ok., the place firearms are very restricted, 3D-printed weapons have been thought of unlawful. However in November 2022, the federal government up to date the legal guidelines to particularly ban possessing, shopping for or producing components for 3D-printed weapons. The proposal goals to explicitly ban 3D-printed weapons, addressing their distinctive challenges instantly, slightly than counting on present legal guidelines designed for conventional firearms. The U.Ok. Nationwide Crime Company has known as for a ban on possessing blueprints as properly, and Parliament is at present contemplating two payments proposing such a ban.
An NBC Information investigation describes how straightforward it’s to construct a ghost gun.
Federal guidelines within the US
The U.S. Structure poses some distinctive challenges to regulating ghost weapons, particularly for the federal authorities, but additionally for states.
For normal firearms – that’s, these not produced by 3D printing – U.S. federal legislation requires {that a} key element, known as the decrease receiver, bear a singular serial quantity. Buying a decrease receiver requires a federal background examine and conducting the transaction by a service provider who holds a Federal Firearms License.
The scenario is extra sophisticated on the subject of 3D printing weapons. The First Modification to the Structure protects freedom of expression, which incorporates sharing digital information that would comprise firearm designs. And the Second Modification protects residents’ proper to bear arms.
Within the U.S., promoting 3D-printed firearms requires a federal license. However producing or proudly owning home made firearms for private use is allowed. That features 3D-printing the decrease receiver element, and assembling the remainder of the weapon with unregulated components.
Present federal legislation, underneath evaluate by the Supreme Court docket, additionally requires 3D-printed weapons meet particular pointers, even when they don’t comprise any at present regulated firearms elements. Below the rule, makers of ghost gun kits should get hold of a federal license, conduct background checks, report details about their prospects and add serial numbers to their merchandise.
The kind of weapon additionally issues when figuring out the legality of a 3D-printed firearm. Computerized weapons, or machine weapons, can proceed to fireplace ammunition so long as the person holds the set off down. These weapons have been closely regulated by federal legislation for nearly 90 years.
Criminals have used 3D printers to provide “Glock switches” or auto-sears, which convert semi-automatic firearms into totally computerized machine weapons. That turns these gadgets into machine weapons underneath federal legislation, making them unlawful. Proudly owning this sort of 3D-printed conversion gadget can result in a most of 10 years in federal jail and a $250,000 nice.

3D-printed gun elements seized by police in Mineola, N.Y., Dec. 10, 2024.
Howard Schnapp/Newsday RM through Getty Photos
Within the states
The states may also regulate firearms, and plenty of are attempting to get management of 3D-printed weapons.
By November 2024, 15 U.S. states had established laws on ghost weapons, although actual necessities range. The principles sometimes require a serial quantity, background checks for firearm element purchases and reporting to authorities that an individual is producing 3D-printed weapons.
As an example, in New Jersey, a 2019 legislation mandates that every one ghost weapons have a serial quantity and be registered. Below present New York legislation, possession or distribution of a 3D-printed gun is assessed as a misdemeanor. Nonetheless, a proposed legislation seeks to raise the manufacturing of firearms utilizing 3D-printing know-how to a felony offense.
As know-how advances and guidelines evolve, criminals who use 3D-printed firearms will proceed to pose threats to public security and safety, and governments will proceed enjoying catch-up to successfully regulate these weapons.

