Date saved: 2026-10-23 03:00 (PDT)
Sources: GIFFORDS Law Center, News From The States, Washington State Legislature, Colorado Legislature, New York Senate, Planet 3DP, Ryan McBeth, News 4 Makers
Key findings
The 2026 state legislative wave
- GIFFORDS Law Center (Aug 12, 2026): Colorado (HB 1144) prohibited manufacturing a firearm, unfinished frame or receiver, large-capacity magazine, or rapid-fire device with a 3D printer or CNC milling machine without a federal firearms license; New Jersey prohibited possession of the digital code used to 3D print firearms with the intent to manufacture a firearm (AB 4975); New York (S. 9005) became the first state to require that all 3D printers for sale come with blocking technology to prevent the printer's use to manufacture firearms and conversion devices; Washington prohibited not only the 3D printing of firearms but also the distribution of digital firearm manufacturing code (HB 2320); California is considering AB 2047, which would require blocking technology on 3D printers akin to New York's law. (Source)
- News From The States (2026): Colorado, Maine, New Jersey, New York, Virginia, and Washington state enacted laws tightening rules around 3D-printed guns and firearms without serial numbers; the new laws include restrictions on manufacturing untraceable firearms, limits on the distribution of digital gun-design files, and requirements aimed at preventing the use of 3D printers to produce gun parts; Colorado Governor Jared Polis signed a law in May expanding the state's restrictions; Washington Governor Bob Ferguson signed a similar law in March that also targets the digital files used to create the weapons. (Source)
What the laws actually cover
- Washington State Legislature, HB 2320 (signed March 2026): Prohibits manufacturing of certain firearms and firearm components through use of a 3D printer or CNC milling machine; prohibits selling, transferring, distributing, or offering to sell digital firearm manufacturing code for a firearm or unfinished frame or receiver to a person not licensed to manufacture firearms under federal law; prohibits possessing digital firearm manufacturing code with intent to distribute to an unlicensed person or with intent to manufacture a firearm using a 3D printer or CNC milling machine; a violation is a civil infraction, a second violation is a misdemeanor. (Source)
- Colorado Legislature, HB26-1144: Makes it a criminal offense for private citizens to manufacture firearms or firearm components using 3D printers or CNC machines, unless they are federally licensed manufacturers; also criminalizes possessing or distributing digital instructions if "circumstances indicate intent" to manufacture or distribute unlawfully. (Source)
- New York Senate, S. 9005: Requires all 3D printers for sale to come with blocking technology that prevents the printer's use to manufacture firearms and conversion devices; prohibits possessing the digital firearm manufacturing code used by 3D printers to create a firearm with the intent to use it to manufacture one or to distribute it to someone who is prohibited from possessing firearms or is not properly licensed. (Source)
The blocking-technology mandate and maker response
- Planet 3DP (May 7, 2026): Washington HB 2320, signed into law March 24, 2026, bans using 3D printers or CNC machines to manufacture firearms or components without a license and restricts sharing digital CAD files for firearm manufacturing with anyone unlicensed; Colorado HB 26-1144, New York S9005 and A2228, California AB 2047, and federal NDAA FY2026 and HR 4143 are all active; the practical question is whether blocking technology can reliably distinguish between a gun part and a non-gun part that happens to have a similar shape. (Source)
- Ryan McBeth (Jun 26, 2026): New York's law defines digital firearms manufacturing code as digital instructions, CAD files, code, or models that can be used to program a 3D printer or CNC milling machine to make a firearm, ghost gun, unfinished frame receiver, silencer, rapid-fire modification device, or major component; the law creates a working group on firearm prevention technology and defines blocking technology as hardware, software, or firmware integrated measures that make a printer refuse to print a file unless evaluated by a blueprint detection algorithm. (Source)
The legislative push targeting 3D printers and CNC machines in 2026 is not only about ghost guns. It is about the political and legal precedent for requiring digital manufacturing equipment to police what it makes. Six states (Colorado, Maine, New Jersey, New York, Virginia, and Washington) enacted laws this year tightening rules around 3D-printed firearms, and the most aggressive of them go further than banning the manufacturing: they criminalize possession of the digital code used to print firearms with intent to manufacture, and they require the machines themselves to include blocking technology that refuses to print a file unless a state-maintained database determines it is not a firearm part.
New York became the first state to require that all 3D printers for sale come with blocking technology to prevent the printer's use to manufacture firearms and conversion devices (a requirement that goes into effect as soon as technologically feasible. Washington's HB 2320, signed March 2026, prohibits both the 3D printing of firearms and the distribution of digital firearm manufacturing code, and makes it a civil infraction (second violation a misdemeanor) to possess such code with intent to distribute to an unlicensed person. The throughline is that these bills redefine a CNC milling machine, a laser cutter, or a 3D printer as a potentially criminal tool based on what digital file it is asked to execute) and the blocking-technology requirement effectively outsources censorship of CAD files to a state-approved algorithm. What to watch next is whether California's pending AB 2047, which would require blocking technology on 3D printers sold in the state, passes the Senate, and whether the federal NDAA and HR 4143 proposals create a national baseline.
Source links
- GIFFORDS Law Center: Gun Law Trendwatch: How States Are Moving Forward in 2026
- News From The States: More states restrict 3D-printed firearms
- Washington State Legislature: HB 2320 Bill Report
- Planet 3DP: Your Favorite 3D Printer Is About to Become Illegal
- Ryan McBeth: This Law Makes YOU a Criminal, Even if You Don't Own a Gun
- News 4 Makers: Background checks for 3D printers??!