S. 3304Senate115th Congress (2017-2019)In Committee

3D Printed Gun Safety Act of 2018

Introduced July 31, 2018

AI-Generated Summary

Updated April 15, 2026 at 11:16 PM UTC

The bill aims to stop the online distribution of digital files that can be used to 3‑D print firearms. It makes it illegal to publish such computer‑aided design (CAD) files or code that can automatically program a 3‑D printer to produce a gun or complete a gun from an unfinished receiver. The law would apply to anyone who intentionally shares these instructions over the Internet, affecting potential manufacturers of untraceable firearms.

Key Provisions

  • Adds a new subsection (aa) to 18 U.S.C. § 922 making it unlawful for any person to intentionally publish, via the Internet, digital instructions (CAD files or other code) that can automatically program a 3‑D printer to produce a firearm or complete a firearm from an unfinished frame or receiver.

Legislative Activity

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1 earlier action
SenateIntro Referral Latest Action

Read twice and referred to the Committee on the Judiciary.

July 31, 2018

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SenateIntro Referral

Introduced in Senate

July 31, 2018

SenateIntro Referral

Read twice and referred to the Committee on the Judiciary.

July 31, 2018

Floor Debate

5 members

What members said about S. 3304 on the floor

1 Republican4 Democrats
Robert Menendez
Sen. Robert MenendezD-NJ · Jul 31, 2018

Mr. President, I join my colleagues on the floor, and I salute both Senator Nelson and Senator Blumenthal, who represent States whose citizens have felt the scourge of gun violence--in Newtown, in…

Bill Nelson
Sen. Bill NelsonD-FL · Jul 31, 2018

Mr. President, to accommodate the Senator from Utah, I will not make my remarks first, but just by way of introduction to say that tonight at midnight American national security is going to be…

Chris Van Hollen
Sen. Chris Van HollenD-MD · Jul 31, 2018

Mr. President, I thank the Senator from Florida, Mr. Nelson, for introducing this legislation and also my other colleagues who have been on the Senate floor today. This is emergency legislation,…

Richard Blumenthal
Sen. Richard BlumenthalD-CT · Jul 31, 2018

Mr. President, I thank my colleague and friend from Florida for his leadership on this profoundly important and imminently threatening issue of safety, as well my colleague from New Jersey for his…

Mike Lee
Sen. Mike LeeR-UT · Jul 31, 2018

Mr. President, reserving the right to object, I first saw this legislation literally moments ago; therefore, I haven't had adequate time to review it, but I will say this: Any legislation that comes…

Bill Text

Latest available legislative text

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Introduced in SenateIssued July 31, 2018

II

115th CONGRESS

2d Session

S. 3304

IN THE SENATE OF THE UNITED STATES

July 31, 2018

Mr. Nelson (for himself, Mr. Schumer, Mrs. Feinstein, Mr. Blumenthal, Mr. Markey, Mr. Menendez, Mr. Van Hollen, Mr. Brown, Ms. Klobuchar, Mrs. Murray, Mr. Murphy, Mr. Reed, Mr. Booker, Mr. Schatz, Mr. Casey, Ms. Hirono, Mr. Kaine, Mrs. Gillibrand, Ms. Harris, Mr. Leahy, Mr. Carper, Ms. Smith, Ms. Baldwin, Mr. Sanders, Mr. Whitehouse, Ms. Warren, Ms. Duckworth, Mr. Coons, Ms. Hassan, Mr. Merkley, and Mr. Cardin) introduced the following bill; which was read twice and referred to the Committee on the Judiciary

A BILL

To amend chapter 44 of title 18, United States Code, to prohibit the publication of 3D printer plans for the printing of firearms, and for other purposes.

1.

Short title

This Act may be cited as the 3D Printed Gun Safety Act of 2018.

2.

Findings

Congress finds the following:

(1)

Three dimensional, or 3D printing, involves the programming of a 3D printing machine with a computer file that provides the schematics for the item to be printed.

(2)

Recent technological developments have allowed for the 3D printing of firearms and firearm parts, including parts made out of plastic, by unlicensed individuals in possession of relatively inexpensive 3D printers.

(3)

Because 3D printing allows individuals to make their own firearms out of plastic, they may be able to evade detection by metal detectors at security checkpoints, increasing the risk that a firearm will be used to perpetrate violence on an airplane or other area where people congregate.

(4)

The availability of online schematics for the 3D printing of firearms and firearm parts increases the risk that dangerous people, including felons, domestic abusers, and other people prohibited from possessing firearms under Federal law, will obtain a firearm through 3D printing.

(5)

On June 7, 2013, an assailant used a gun he had constructed by himself to kill his father, brother, and 3 other people at Santa Monica College in California. The person had failed a background check when he tried to purchase a gun from a licensed gun dealer. The gun he used was made from an unfinished AR–15-style receiver, similar to a receiver that can now be made with a 3D printer.

(6)

Firearms tracing is a powerful investigative tool. When law enforcement agencies recover firearms that have been used in crimes, the agencies work with the Bureau of Alcohol, Tobacco, Firearms, and Explosives to trace these firearms to their first retail purchaser. The agencies can use that information to investigate and solve the crimes. In 2017 alone, the Bureau of Alcohol, Tobacco, Firearms, and Explosives conducted 408,000 traces.

(7)

Firearms tracing depends on the ability to identify firearms based on their serial number. Traditionally, when a firearm is manufactured domestically or imported from abroad, it is engraved with a serial number and markings that identify the manufacturer or importer, make, model, and caliber, and are unique to the firearm. Firearms made by unlicensed individuals with 3D printers, however, do not contain genuine serial numbers.

(8)

Criminals seek firearms without serial numbers because they cannot be traced. In July 2018, the Los Angeles Police Department completed a 6-month-long investigation that resulted in the seizure of 45 firearms, some of which had been assembled without serial numbers in order to be untraceable. If the schematics for 3D printing firearms and firearm parts are available online, people intending to commit gun crimes may create similarly untraceable firearms in order to avoid accountability for these crimes.

(9)

Interstate gun trafficking, including the trafficking of untraceable firearms, interferes with lawful commerce in firearms and significantly contributes to gun crime. Of the 211,384 firearms traced by the Bureau of Alcohol, Tobacco, Firearms, and Explosives in 2016, 60,936 of those firearms were originally sold by a licensed firearms dealer in a State other than the State where they were recovered. These guns made up 28.8 percent of all firearm recoveries in 2016.

(10)

The proliferation of 3D-printed firearms threatens to undermine the entire Federal firearms regulatory scheme and to endanger public safety and national security. By making illegal the publication of certain computer code that can be used automatically to program 3D printers and create firearms—the only means of combating this unique threat—Congress seeks not to regulate the rights of computer programmers under the First Amendment to the Constitution of the United States, but rather to curb the pernicious effects of untraceable—and potentially undetectable—firearms.

3.

Prohibition

Section 922 of title 18, United States Code, is amended by adding at the end the following:

(aa)

It shall be unlawful for any person to intentionally publish, over the Internet or by means of the World Wide Web, digital instructions in the form of Computer Aided Design files or other code that can automatically program a 3-dimensional printer or similar device to produce a firearm or complete a firearm from an unfinished frame or receiver.

.