II
119THCONGRESS
1
STSESSION S. 1039
To amend the definitions of firearm silencer and firearm muffler in section
921 of title 18, United States Code, and for other purposes.
IN THE SENATE OF THE UNITED STATES
MARCH13, 2025
Mr. S
HEEHY(for himself, Mr. LEE, Mr. CASSIDY, Mr. RICKETTS, Mr. BUDD,
Mr. D
AINES, Mr. JUSTICE, and Mr. CORNYN) introduced the following
bill; which was read twice and referred to the Committee on the Judiciary
A BILL
To amend the definitions of firearm silencer and firearm
muffler in section 921 of title 18, United States Code,
and for other purposes.
Be it enacted by the Senate and House of Representa-1
tives of the United States of America in Congress assembled, 2
SECTION 1. SHORT TITLE. 3
This Act may be cited as the ‘‘Protecting Americans’ 4
Right To Silence Act of 2025’’ or the ‘‘PARTS Act of 5
2025’’. 6
SEC. 2. FIREARM SILENCERS AND FIREARM MUFFLERS. 7
Section 921(a)(25) of title 18, United States Code, 8
is amended to read as follows: 9
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•S 1039 IS
‘‘(25) The terms ‘firearm silencer’ and ‘firearm muf-1
fler’ mean— 2
‘‘(A) any device designed or redesigned, made 3
or remade, and intended— 4
‘‘(i) to silence, muffle, or diminish the au-5
ditory report of a portable firearm; and 6
‘‘(ii) to be attached to a portable firearm, 7
directly or through a mount, adaptor, or other 8
device that is not a firearm silencer or firearm 9
muffler; or 10
‘‘(B) the outer tube or other single part of any 11
device that— 12
‘‘(i) provides the primary housing or is the 13
primary structure for internal sound-reduction 14
components designed or redesigned, made or re-15
made, and intended to silence, muffle, or dimin-16
ish the auditory report of a portable firearm; 17
and 18
‘‘(ii) attaches to a portable firearm, di-19
rectly or through a mount, adaptor, or other de-20
vice that is not a firearm silencer or firearm 21
muffler.’’. 22
Æ
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