II 

118TH CONGRESS 

1ST SESSION S. 1319 

To address the importation and proliferation of machinegun conversion 

devices. 

IN THE SENATE OF THE UNITED STATES 

APRIL 26, 2023 

Ms. KLOBUCHAR (for herself, Mr. PETERS, Mr. BLUMENTHAL, Mr. CASEY, 

Mr. DURBIN, Mrs. FEINSTEIN, Mr. HEINRICH, Ms. HIRONO, Mr. MARKEY, Mr. MENENDEZ, Mr. MURPHY, Mr. PADILLA, Mr. REED, Mrs. SHAHEEN, Ms. SMITH, Mr. WHITEHOUSE, 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 machinegun 

conversion 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 2023’’. 

6 SEC. 2. DEFINITIONS. 

7 In this Act— 


kjohnson on DSK79L0C42PROD with BILLS
2 

•S 1319 IS

1 (1) the term ‘‘machinegun’’ has the meaning 

2 given the term in section 5845 of the Internal Rev3 enue Code of 1986; and 

4 (2) the term ‘‘machinegun conversion device’’ 

5 means any part designed and intended solely and ex6 clusively, or combination of parts designed and in7 tended, for use in converting a weapon into a ma8 chinegun. 

9 SEC. 3. PREVENTION AND INTERCEPTION STRATEGY. 

10 (a) STRATEGY.— 

11 (1) IN GENERAL.—Not later than 120 days 

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

13 General, the Secretary of Homeland Security, and 

14 the Secretary of the Treasury shall develop and im15 plement a strategy to prevent or intercept the impor16 tation or trafficking of machinegun conversion de17 vices. 

18 (2) CONTENTS.—The strategy described in 

19 paragraph (1) shall include plans to optimize— 

20 (A) the capacity of Federal law enforce21 ment agencies to detect, intercept, and seize 

22 machinegun conversion devices; 

23 (B) the coordination between State and 

24 local law enforcement agencies and Federal law 

25 enforcement agencies, including the Bureau of 


kjohnson on DSK79L0C42PROD with BILLS
3 

•S 1319 IS

1 Alcohol, Tobacco, Firearms and Explosives, the 

2 Federal Bureau of Investigation, Homeland Se3 curity Investigations, and U.S. Customs and 

4 Border Protection, when machinegun conversion 

5 devices are seized at ports of entry; 

6 (C) efforts by the Bureau of Alcohol, To7 bacco, Firearms and Explosives to collaborate 

8 with State and local law enforcement agencies 

9 to identify and trace machinegun conversion de10 vices used in crimes, including identifying the 

11 source of the device, whether from a foreign 

12 country or the United States; 

13 (D) training programs provided by Federal 

14 law enforcement agencies to aid State and local 

15 law enforcement agencies in identifying ma16 chinegun conversion devices; 

17 (E) the investigation and collection of data 

18 regarding the origins of machinegun conversion 

19 devices that are seized at ports of entry or re20 covered by law enforcement agencies in the 

21 United States in order to identify patterns and 

22 detect vulnerabilities; and 

23 (F) the capacity of Federal law enforce24 ment agencies, including the Bureau of Alcohol, 

25 Tobacco, Firearms and Explosives, the Federal 


kjohnson on DSK79L0C42PROD with BILLS
4 

•S 1319 IS

1 Bureau of Investigation, and Homeland Secu2 rity Investigations, to detect, intercept, and 

3 seize domestically produced machinegun conver4 sion devices, including machinegun conversion 

5 devices produced using 3D printing technology. 

6 (b) REPORTS.— 

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

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

9 General, the Secretary of Homeland Security, and 

10 the Secretary of the Treasury shall submit a report 

11 on the strategy developed and implemented under 

12 subsection (a), which shall include relevant statis13 tical information, to— 

14 (A) the Committee on the Judiciary of the 

15 Senate; 

16 (B) the Committee on Homeland Security 

17 and Governmental Affairs of the Senate; 

18 (C) the Committee on the Judiciary of the 

19 House of Representatives; and 

20 (D) the Committee on Homeland Security 

21 of the House of Representatives. 

22 (2) PERIODIC UPDATES.—Not less frequently 

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

24 Secretary of Homeland Security, and the Secretary 

25 of the Treasury shall submit to the congressional 


kjohnson on DSK79L0C42PROD with BILLS
5 

•S 1319 IS

1 committees described in paragraph (1) an update to 

2 the report submitted under that paragraph that de3 scribes progress made on the implementation of the 

4 strategy developed under subsection (a). 

5 SEC. 4. FORFEITURE OF PROCEEDS FROM MACHINEGUN 

6 VIOLATIONS. 

7 Section 5872 of the Internal Revenue Code of 1986 

8 is amended— 

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

10 proceeds derived from the illegal trafficking of a ma11 chinegun,’’ after ‘‘provisions of this chapter’’; and 

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

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

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

15 of a machinegun’ means the making, manufacture, impor16 tation, exportation, or transfer of a machinegun in viola17 tion of the provisions of this chapter or any regulations 

18 prescribed under this chapter.’’. 

19 SEC. 5. GUN TRAFFICKING REPORT. 

20 The Attorney General shall include information about 

21 machinegun conversion devices in the annual firearms 

22 trafficking report announced by the President on April 7, 

23 2021, including— 

24 (1) the number of crimes in which machinegun 

25 conversion devices are used; and 


kjohnson on DSK79L0C42PROD with BILLS
6 

•S 1319 IS

1 (2) whether the machinegun conversion devices 

2 recovered from crimes described in paragraph (1) 

3 are manufactured in the United States or a foreign 

4 country. 

Æ 


kjohnson on DSK79L0C42PROD with BILLS