II 

117TH CONGRESS 

2D SESSION S. 4606 

To address the importation and proliferation of firearm modification devices. 

IN THE SENATE OF THE UNITED STATES 

JULY 25, 2022 

Ms. KLOBUCHAR (for herself, Mr. PETERS, Mr. BLUMENTHAL, Mrs. FEINSTEIN, Mr. REED, Mr. MARKEY, Mr. MURPHY, Mrs. SHAHEEN, Mr. 

PADILLA, Ms. SMITH, and Mr. WYDEN) introduced the following bill; 

which was read twice and referred to the Committee on the Judiciary 

A BILL 

To address the importation and proliferation of firearm 

modification devices. 

1 Be it enacted by the Senate and House of Representa2 tives of the United States of America in Congress assembled, 

3 SECTION 1. SHORT TITLE. 

4 This Act may be cited as the ‘‘Preventing Illegal 

5 Weapons Trafficking Act of 2022’’. 

6 SEC. 2. DEFINITIONS. 

7 In this Act— 

8 (1) the term ‘‘firearm modification device’’ 

9 means any part designed and intended solely and ex10 clusively, or combination of parts designed and inVerDate Sep 11 2014 16:33 Jul 26, 2022 Jkt 029200 PO 00000 Frm 00001 Fmt 6652 Sfmt 6201 E:\BILLS\S4606.IS S4606

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1 tended, for use in converting a weapon into a ma2 chinegun; and 

3 (2) the term ‘‘machinegun’’ has the meaning 

4 given the term in section 5845 of the Internal Rev5 enue Code of 1986. 

6 SEC. 3. PREVENTION AND INTERCEPTION STRATEGY. 

7 (a) STRATEGY.—Not later than 120 days after the 

8 date of enactment of this Act, the Attorney General, the 

9 Secretary of Homeland Security, and the Secretary of the 

10 Treasury shall develop and implement a strategy to pre11 vent or intercept the importation or trafficking of firearm 

12 modification devices, including by— 

13 (1) improving the capacity of Federal law en14 forcement agencies to detect, intercept, and seize 

15 firearm modification devices; 

16 (2) increasing the coordination between State 

17 and local law enforcement agencies and Federal law 

18 enforcement agencies, including the Bureau of Alco19 hol, Tobacco, Firearms and Explosives, the Federal 

20 Bureau of Investigation, Homeland Security Inves21 tigations, and U.S. Customs and Border Protection, 

22 when firearm modification devices are seized at ports 

23 of entry; 

24 (3) ensuring that the Bureau of Alcohol, To25 bacco, Firearms and Explosives collaborates with 


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1 State and local law enforcement agencies to identify 

2 and trace firearm modification devices used in 

3 crimes, including identifying the source of the de4 vice, whether from a foreign country or the United 

5 States; 

6 (4) investigating and collecting data regarding 

7 the origins of firearm modification devices that are 

8 seized at ports of entry or recovered by law enforce9 ment agencies in the United States in order to iden10 tify patterns and detect vulnerabilities; and 

11 (5) improving the capacity of Federal law en12 forcement agencies, including the Bureau of Alcohol, 

13 Tobacco, Firearms and Explosives, the Federal Bu14 reau of Investigation, and Homeland Security Inves15 tigations, to detect, intercept, and seize domestically 

16 produced firearm modification devices, including 

17 firearm modification devices produced using 3D 

18 printing technology. 

19 (b) REPORTS.— 

20 (1) INITIAL REPORT.—Not later than 120 days 

21 after the date of enactment of this Act, the Attorney 

22 General, the Secretary of Homeland Security, and 

23 the Secretary of the Treasury shall submit a report 

24 on the strategy developed and implemented under 


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1 subsection (a), which shall include relevant statis2 tical information, to— 

3 (A) the Committee on the Judiciary of the 

4 Senate; 

5 (B) the Committee on Homeland Security 

6 and Governmental Affairs of the Senate; 

7 (C) the Committee on the Judiciary of the 

8 House of Representatives; and 

9 (D) the Committee on Homeland Security 

10 of the House of Representatives. 

11 (2) PERIODIC UPDATES.—Not less frequently 

12 than once every 2 years, the Attorney General, the 

13 Secretary of Homeland Security, and the Secretary 

14 of the Treasury shall submit to the congressional 

15 committees described in paragraph (1) an update to 

16 the report submitted under that paragraph that de17 scribes progress made on the implementation of the 

18 strategy developed under subsection (a). 

19 SEC. 4. FORFEITURE OF PROCEEDS FROM MACHINEGUN 

20 VIOLATIONS. 

21 Section 5872 of the Internal Revenue Code of 1986 

22 is amended— 

23 (1) in subsection (a), by inserting ‘‘, and any 

24 proceeds derived from the illegal trafficking of a ma25 chinegun,’’ after ‘‘provisions of this chapter’’; and 


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1 (2) by adding at the end the following: 

2 ‘‘(c) ILLEGAL TRAFFICKING OF A MACHINEGUN.— 

3 For purposes of subsection (a), the term ‘illegal trafficking 

4 of a machinegun’ means the making, manufacture, impor5 tation, exportation, or transfer of a machinegun in viola6 tion of the provisions of this chapter or any regulations 

7 prescribed under this chapter.’’. 

8 SEC. 5. GUN TRAFFICKING REPORT. 

9 The Attorney General shall include information about 

10 firearm modification devices in the annual firearms traf11 ficking report announced by the President on April 7, 

12 2021, including— 

13 (1) the number of crimes in which firearm 

14 modification devices are used; and 

15 (2) whether the firearm modification devices re16 covered from crimes described in paragraph (1) are 

17 manufactured in the United States or a foreign 

18 country. 

Æ 


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