← Back to Bills
S. 1039Senate119th Congress (2025-2027)In Committee

PARTS Act of 2025

Sponsored by Tim SheehySen. Tim Sheehy (R-MT)
Introduced March 13, 2025

AI-Generated Summary

Updated November 24, 2025 at 1:56 AM UTC

The PARTS Act of 2025 updates the federal definition of firearm silencers and mufflers. It expands the definition to include any device, or its outer housing, that is designed to reduce the noise of a portable gun and can be attached to the gun, even if the attachment is through a mount or adaptor. This change affects how silencers and mufflers are regulated, impacting manufacturers, sellers, and owners of such devices.

Key Provisions

  • Changes the legal definition of “firearm silencer” and “firearm muffler” in 18 U.S.C. § 921(a)(25) to cover any device made or redesigned to silence, muffle, or reduce the sound of a portable firearm and that can be attached directly or via a mount, adaptor, or other device.
  • Specifically includes the outer tube or single part of a device that houses the internal sound‑reduction components and can be attached to a portable firearm.

Legislative Activity

Stay on top of the latest movement without scrolling through every action

1 earlier action
SenateIntro Referral Latest Action

Read twice and referred to the Committee on the Judiciary.

Judiciary Committee

March 13, 2025

View full timeline
SenateIntro Referral

Introduced in Senate

March 13, 2025

SenateIntro Referral

Read twice and referred to the Committee on the Judiciary.

Judiciary Committee

March 13, 2025

Bill Text

Latest available legislative text

Reading Mode
Latest
Raw Text PDF XML
Introduced in SenateIssued March 13, 2025

II

119th CONGRESS

1st Session

S. 1039

IN THE SENATE OF THE UNITED STATES

March 13, 2025

Mr. Sheehy (for himself, Mr. Lee, Mr. Cassidy, Mr. Ricketts, Mr. Budd, Mr. Daines, 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.

1.

Short title

This Act may be cited as the Protecting Americans’ Right To Silence Act of 2025 or the PARTS Act of 2025.

2.

Firearm silencers and firearm mufflers

Section 921(a)(25) of title 18, United States Code, is amended to read as follows:

(25)

The terms firearm silencer and firearm muffler mean—

(A)

any device designed or redesigned, made or remade, and intended—

(i)

to silence, muffle, or diminish the auditory report of a portable firearm; and

(ii)

to be attached to a portable firearm, directly or through a mount, adaptor, or other device that is not a firearm silencer or firearm muffler; or

(B)

the outer tube or other single part of any device that—

(i)

provides the primary housing or is the primary structure for internal sound-reduction components designed or redesigned, made or remade, and intended to silence, muffle, or diminish the auditory report of a portable firearm; and

(ii)

attaches to a portable firearm, directly or through a mount, adaptor, or other device that is not a firearm silencer or firearm muffler.

.