I 
115TH CONGRESS 
1ST SESSION H. R. 4052 
To prohibit the transfer or possession of large capacity ammunition feeding 
devices, and for other purposes. 
IN THE HOUSE OF REPRESENTATIVES 
OCTOBER 12, 2017 
Ms. ESTY of Connecticut (for herself, Ms. TITUS, Ms. ROSEN, Mr. KIHUEN, 
Mr. DEUTCH, Ms. DEGETTE, Mr. ESPAILLAT, Ms. BROWNLEY of Cali-
fornia, Ms. BONAMICI, Ms. JAYAPAL, Ms. BASS, Mr. CICILLINE, Mr. 
HIMES, Ms. DELAURO, Mr. PETERS, Mr. CUMMINGS, Mr. SWALWELL of 
California, Ms. NORTON, Mr. KHANNA, Miss RICE of New York, Mr. 
MOULTON, Mr. KRISHNAMOORTHI, Mr. CARBAJAL, Ms. FRANKEL of 
Florida, Mrs. MURPHY of Florida, Mr. PAYNE, Ms. KELLY of Illinois, Ms. 
SCHAKOWSKY, Mr. SARBANES, Mr. NADLER, Mr. DESAULNIER, Mr. 
LANGEVIN, Ms. SLAUGHTER, Mr. BRENDAN F. BOYLE of Pennsylvania, 
Ms. WASSERMAN SCHULTZ, Mr. AGUILAR, Ms. CASTOR of Florida, Mrs. 
WATSON COLEMAN, Mr. CROWLEY, Ms. PINGREE, Ms. CLARK of Massa-
chusetts, Mr. GRIJALVA, Ms. TSONGAS, Mr. SIRES, Mr. CARSON of Indi-
ana, Ms. BARRAGA´N, Mr. SHERMAN, Mr. MCEACHIN, Ms. LEE, Mr. 
COURTNEY, Mr. PERLMUTTER, Mr. RASKIN, Mr. SCOTT of Virginia, Mr. 
BLUMENAUER, Mr. BEYER, Mr. ENGEL, Mr. CAPUANO, Ms. JACKSON 
LEE, Mr. CONNOLLY, Mr. QUIGLEY, Mr. HASTINGS, Mr. YARMUTH, Mr. 
COHEN, Mr. PALLONE, Mr. CONYERS, Mr. LARSON of Connecticut, Mr. 
KENNEDY, Ms. SPEIER, Mr. SMITH of Washington, Mr. RICHMOND, Mr. 
SCHNEIDER, Mrs. DAVIS of California, Mr. MCGOVERN, Mr. BERA, Ms. 
SA´NCHEZ, Mr. SCHIFF, Mr. TONKO, Mr. HIGGINS of New York, Ms. 
ADAMS, Mr. ELLISON, Mr. MEEKS, Ms. MATSUI, Ms. SHEA-PORTER, 
Mrs. DEMINGS, Ms. FUDGE, and Ms. ROYBAL-ALLARD) introduced the 
following bill; which was referred to the Committee on the Judiciary 
A BILL 
To prohibit the transfer or possession of large capacity 
ammunition feeding devices, and for other purposes. 
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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 ‘‘Keep Americans Safe 
Act’’. 
SEC. 2. PROHIBITION ON TRANSFER OR POSSESSION OF 
LARGE CAPACITY AMMUNITION FEEDING DE-
VICES. 
(a) DEFINITION.—Section 921(a) of title 18, United 
States Code, is amended by inserting after paragraph (29) 
the following: 
‘‘(30) The term ‘large capacity ammunition feeding 
device’— 
‘‘(A) means a magazine, belt, drum, feed strip, 
or similar device that has a capacity of, or that can 
be readily restored or converted to accept, more than 
10 rounds of ammunition; but 
‘‘(B) does not include an attached tubular de-
vice designed to accept, and capable of operating 
only with, .22 caliber rimfire ammunition.’’. 
(b) PROHIBITIONS.—Section 922 of such title is 
amended by inserting after subsection (u) the following: 
‘‘(v)(1)(A)(i) Except as provided in clause (ii), it shall 
be unlawful for a person to transfer or possess a large 
capacity ammunition feeding device. 
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‘‘(ii) Clause (i) shall not apply to the possession of 
a large capacity ammunition feeding device otherwise law-
fully possessed within the United States on or before the 
date of the enactment of this subsection. 
‘‘(B) It shall be unlawful for any person to import 
or bring into the United States a large capacity ammuni-
tion feeding device. 
‘‘(2) Paragraph (1) shall not apply to— 
‘‘(A) a manufacture for, transfer to, or posses-
sion by the United States or a department or agency 
of the United States or a State or a department, 
agency, or political subdivision of a State, or a 
transfer to or possession by a law enforcement offi-
cer employed by such an entity for purposes of law 
enforcement (whether on or off duty); 
‘‘(B) a transfer to a licensee under title I of the 
Atomic Energy Act of 1954 for purposes of estab-
lishing and maintaining an on-site physical protec-
tion system and security organization required by 
Federal law, or possession by an employee or con-
tractor of such a licensee on-site for such purposes 
or off-site for purposes of licensee-authorized train-
ing or transportation of nuclear materials; 
‘‘(C) the possession, by an individual who is re-
tired from service with a law enforcement agency 
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