Suppressor parts after the 2026 NFA change: what changed and what didn't
By the SilencerPart team · Last reviewed October 12, 2026 · Not legal advice
The short answer
Since October 9, 2026, there's no Form 4, no tax stamp and no NFA registration for suppressors. But a suppressor, and any part intended only for building one, is still a firearm under the Gun Control Act. So baffles, tubes, end caps and kits bought from another state still ship to your FFL, and you still fill out a 4473 and pass a background check. Mounts, thread adapters, pistons and covers are not silencer parts and ship straight to you.
How we got here
- January 1, 2026: the NFA tax on suppressors dropped from $200 to $0 under the 2025 One Big Beautiful Bill Act.
- August 2026: in Silencer Shop Foundation v. ATF, a federal court in the Northern District of Texas enjoined ATF from enforcing the NFA's approval and registration requirements against the plaintiffs and their customers. The challenge argued that with the tax at $0, the registration scheme had lost its constitutional basis.
- October 9, 2026: DOJ extended that nationwide. ATF announced it will not enforce the NFA against domestic making, possession and transfer of silencers, short-barreled rifles and shotguns, and "any other weapons," as a matter of enforcement discretion.
What's no longer enforced
- ATF approval before you make or buy a suppressor (Forms 1, 3 and 4 are now voluntary)
- Registration in the National Firearms Registration and Transfer Record
- Criminal enforcement for possessing an unregistered silencer, or for transporting one across state lines
What still applies
- The GCA definition. Federal law defines a firearm silencer to include "any combination of parts, designed or redesigned, and intended for use in assembling or fabricating" one, and "any part intended only for use in such assembly or fabrication" (18 U.S.C. § 921(a)(25)). A loose baffle is a firearm.
- 4473s and background checks for every transfer through a dealer.
- Interstate transfers go through an FFL. An unlicensed person can't transfer a firearm directly to a resident of another state.
- Dealer and manufacturer licensing. If you regularly sell silencer parts for profit, you're likely engaged in the business and need an FFL. Making them to sell requires a manufacturer license.
- State law, which varies widely and changed nothing on October 9.
Firearm part or accessory?
| Part | Status | Interstate sale |
|---|---|---|
| Complete suppressor | Firearm | Ships to your FFL |
| Baffles, stacks, monocores | Firearm part | Ships to your FFL |
| Outer tube | Firearm part | Ships to your FFL |
| Front and rear end caps | Firearm part | Ships to your FFL |
| Build or parts kit | Firearm part | Ships to your FFL |
| QD mount, brake, flash hider | Accessory | Ships to your door |
| Thread adapter or protector | Accessory | Ships to your door |
| Piston (Nielsen device), fixed spacer | Accessory | Ships to your door |
| Cover, wrap, tools | Accessory | Ships to your door |
Buying a firearm part from another state
- Call a local FFL and confirm they'll receive a suppressor part, and what they charge for the transfer.
- Send the seller the FFL's name, license number and address. Most dealers will email a copy of their license.
- The seller ships to the FFL, not to you.
- You complete a 4473 and background check at the FFL and pick it up.
Buying from someone in your state
Federal law allows a private sale between two residents of the same state without an FFL. Many states require one anyway, or require a background check for every firearm transfer. Check your state's law, and never sell to someone you know or suspect can't legally own firearms.
States where suppressors are still banned
Civilian possession of suppressors remains prohibited in California, Delaware, District of Columbia, Hawaii, Illinois, Massachusetts, New Jersey, New York, Rhode Island. Check current law if you live elsewhere; some states require registration or limit hunting use.
What could change
This is an enforcement policy, not a change to the statute. A future administration could reinstate NFA enforcement, and the litigation is ongoing. If you buy now, keep your receipts, the seller's details and your 4473 record. ATF still accepts voluntary Form 4 filings if you want a federal record.
Common questions
- Can I buy suppressor baffles online now?
- Yes, but baffles are still firearms under the Gun Control Act. If the seller is in another state, they ship to your FFL and you complete a 4473 there. If you're in the same state, federal law allows a private sale; check your state's rules first.
- Is the $200 tax stamp gone?
- For suppressors, yes. Congress cut the NFA tax on silencers to $0 starting January 1, 2026, and since October 9, 2026 ATF isn't enforcing the approval and registration steps either. The $200 tax still applies to machine guns and destructive devices.
- Do I still have to register my suppressor?
- Not under current ATF enforcement policy. Registration in the NFRTR is now voluntary, and ATF still accepts Forms 1 and 4 from anyone who wants a record. Some states require federal registration under their own law, so check yours.
- Could this be reversed?
- Yes. It's an enforcement policy, not a repeal of the NFA. A future administration could restore enforcement. Keep records of what you buy and from whom.
Sources
- ATF: Update to NFA Transfer Guidance (October 9, 2026)
- 18 U.S.C. § 921(a)(25): definition of firearm silencer, including parts
- 18 U.S.C. § 922: interstate transfer and background-check rules
- Silencer Shop: Silencer Shop Foundation v. ATF explained
Ready to buy or sell? Browse suppressor baffles, tubes, mounts and thread adapters, or read the SilencerPart rules.