I 
115TH CONGRESS 
1ST SESSION H. R. 3947 
To prohibit the possession or transfer of certain firearm accessories, and 
for other purposes. 
IN THE HOUSE OF REPRESENTATIVES 
OCTOBER 4, 2017 
Mr. CICILLINE (for himself, Ms. ADAMS, Ms. BARRAGA´N, Ms. BASS, Mrs. 
BEATTY, Mr. BEYER, Mr. BLUMENAUER, Ms. BLUNT ROCHESTER, Ms. 
BONAMICI, Mr. BRENDAN F. BOYLE of Pennsylvania, Mr. BRADY of 
Pennsylvania, Mr. BROWN of Maryland, Ms. BROWNLEY of California, 
Mr. CAPUANO, Mr. CARBAJAL, Mr. CA´RDENAS, Mr. CARSON of Indiana, 
Ms. CASTOR of Florida, Ms. JUDY CHU of California, Ms. CLARK of Mas-
sachusetts, Mr. CLEAVER, Mr. COHEN, Mr. CONYERS, Mr. COURTNEY, 
Mr. CRIST, Mr. CROWLEY, Mr. CUMMINGS, Mrs. DAVIS of California, Mr. 
DANNY
K. DAVIS
of Illinois, Mr. DEFAZIO, Ms. DEGETTE, Ms. 
DELAURO, Ms. DELBENE, Mrs. DEMINGS, Mr. DESAULNIER, Mr. 
DEUTCH, Mr. MICHAEL F. DOYLE of Pennsylvania, Mr. ENGEL, Mr. 
ESPAILLAT, Ms. ESHOO, Ms. ESTY of Connecticut, Mr. EVANS, Ms. 
FRANKEL of Florida, Mr. GALLEGO, Mr. GARAMENDI, Mr. GRIJALVA, 
Mr. GOMEZ, Mr. GUTIE´RREZ, Ms. HANABUSA, Mr. HASTINGS, Mr. 
HECK, Mr. HIGGINS of New York, Mr. HIMES, Ms. NORTON, Mr. 
HUFFMAN, Ms. JACKSON LEE, Ms. JAYAPAL, Mr. JEFFRIES, Ms. EDDIE 
BERNICE JOHNSON of Texas, Mr. JOHNSON of Georgia, Ms. KELLY of 
Illinois, Mr. KEATING, Mr. KENNEDY, Mr. KIHUEN, Mr. KILDEE, Mr. 
LANGEVIN, Mrs. LAWRENCE, Ms. LEE, Mr. LEVIN, Mr. LEWIS of Geor-
gia, Mr. TED LIEU of California, Mr. LIPINSKI, Ms. LOFGREN, Mr. 
LOWENTHAL, Mrs. LOWEY, Ms. MICHELLE LUJAN GRISHAM of New 
Mexico, Mr. BEN RAY LUJA´N of New Mexico, Mr. LYNCH, Mrs. CARO-
LYN B. MALONEY of New York, Ms. MATSUI, Ms. MCCOLLUM, Mr. 
MCEACHIN, Mr. MCGOVERN, Mr. MEEKS, Ms. MOORE, Mr. MOULTON, 
Mrs. MURPHY of Florida, Mr. NADLER, Mr. NOLAN, Mr. NORCROSS, Mr. 
PALLONE, Mr. PANETTA, Mr. PAYNE, Mr. PERLMUTTER, Ms. PINGREE, 
Mr. POCAN, Mr. PRICE of North Carolina, Mr. RASKIN, Miss RICE of 
New York, Ms. ROSEN, Ms. ROYBAL-ALLARD, Mr. RUPPERSBERGER, Mr. 
RYAN of Ohio, Mr. SABLAN, Mr. SARBANES, Ms. SCHAKOWSKY, Mr. 
SCHIFF, Mr. SCHNEIDER, Mr. SCOTT of Virginia, Mr. SERRANO, Ms. 
SHEA-PORTER, Mr. SHERMAN, Mr. SIRES, Ms. SLAUGHTER, Mr. SOTO, 
Mr. SUOZZI, Mr. SWALWELL of California, Mr. TAKANO, Mr. THOMPSON 
of California, Ms. TITUS, Mr. TONKO, Mrs. TORRES, Ms. TSONGAS, Ms. 
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VELA´ZQUEZ, Mr. WALZ, Ms. WASSERMAN
SCHULTZ, Ms. MAXINE 
WATERS of California, Mrs. WATSON COLEMAN, Ms. CLARKE of New 
York, Mrs. DINGELL, Mr. DOGGETT, Mr. ELLISON, Mr. FOSTER, Mr. 
KHANNA, Mr. KRISHNAMOORTHI, Mr. SEAN PATRICK MALONEY of New 
York, Ms. MENG, Mr. QUIGLEY, Mr. RUSH, Mr. SCHRADER, and Ms. 
SPEIER) introduced the following bill; which was referred to the Com-
mittee on the Judiciary 
A BILL 
To prohibit the possession or transfer of certain firearm 
accessories, and for other purposes. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. SHORT TITLE. 
This Act may be cited as the ‘‘Automatic Gunfire 
Prevention Act’’. 
SEC. 2. PROHIBITION ON POSSESSION OF CERTAIN FIRE-
ARM ACCESSORIES. 
Chapter 44 of title 18, United States Code, is amend-
ed— 
(1) in section 922, by inserting after subsection 
(u) the following: 
‘‘(v)(1) Except as provided in paragraph (2), on and 
after the date that is 180 days after the date of enactment 
of this subsection, it shall be unlawful for any person to 
import, sell, manufacture, transfer, or possess, in or af-
fecting interstate or foreign commerce, a trigger crank, 
a bump-fire device, or any part, combination of parts, 
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component, device, attachment, or accessory that is de-
signed or functions to accelerate the rate of fire of a semi-
automatic rifle but not convert the semiautomatic rifle 
into a machinegun. 
‘‘(2) This subsection does not apply with respect to 
the importation for, manufacture for, sale to, transfer to, 
or possession by or under the authority of, the United 
States or any department or agency thereof or a State, 
or a department, agency, or political subdivision thereof.’’; 
and 
(2) in section 924(a)(2), by striking ‘‘, or (o)’’ 
and inserting ‘‘(o), or (v)’’. 
Æ 
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