Suppressors: Ownership, Transfers, and State Rules

A suppressor (often called a silencer) is a device that reduces the sound and muzzle flash of a firearm. It does not make a gun silent — it lowers the report to a hearing-safer level, which is why they are popular with hunters and target shooters. Suppressors are regulated federally under the National Firearms Act (NFA) of 1934, so buying one is more involved than buying an ordinary firearm.

The good news is that suppressors are legal for private citizens to own in the large majority of states, and the paperwork has become dramatically faster since the ATF modernized its eForms system. Below we walk through what a suppressor is, how the transfer process works, and where the state-by-state rules differ.

This is general information, not legal advice; verify with the ATF or a qualified attorney.

What counts as a suppressor under federal law

The NFA defines a silencer or suppressor broadly. It includes not only the assembled device but also any part designed and intended for making one. That means individual internal components — baffles, monolithic cores, and similar parts — can themselves be regulated as suppressors even before assembly.

Because of this broad definition, you cannot legally build or buy 'suppressor parts kits' as unregistered items. Each completed suppressor is a serialized NFA item that must be registered in the National Firearms Registration and Transfer Record.

The transfer process and the $200 tax stamp

To buy a suppressor from a dealer, you complete an ATF Form 4 (Application for Tax Paid Transfer and Registration of Firearm) and pay a one-time $200 transfer tax — the 'tax stamp.' The dealer holds the suppressor until the ATF approves the transfer to you.

You will submit fingerprints and a passport-style photo, and you (or each responsible person, if you use a trust) must notify your chief law enforcement officer (CLEO) under the 41F rule. CLEO notification is exactly that — notification, not permission. Your CLEO does not have to sign off or approve the transfer.

Complete ATF Form 4 with your dealer
Pay the one-time $200 tax stamp
Submit fingerprints and a photo
Send CLEO notification (no approval required)
Wait for ATF approval, then take possession

How long does approval take?

Historically, Form 4 suppressor approvals took roughly 8 to 12 months. That has changed. Since the ATF expanded and improved its eForms system in 2024, electronically filed Form 4 transfers for individuals and trusts frequently clear in a matter of days to a few weeks rather than months.

Paper filings are still slower, and background-check delays can extend any individual case, but the typical eFiled suppressor is now approved far faster than the old timelines many buyers still expect.

Individual vs. trust ownership

You can buy a suppressor as an individual or through a legal entity such as an NFA gun trust. A trust lets you name multiple responsible persons who may legally possess and use the suppressor, and it can simplify estate planning by passing the item to successor trustees.

Under the 41F rule, every responsible person on a trust must submit fingerprints, photos, and CLEO notification at the time of the application, so a trust does not skip the background steps — it just changes who is allowed to possess the item.

State-law variance

Federal approval is only half the picture. A handful of states ban civilian suppressor ownership outright regardless of federal registration, and a few more restrict where or how you can use one — for example, prohibiting suppressor use while hunting.

Most states are fully permissive, but you should always confirm your own state's rules before starting a transfer. Our state-by-state NFA reference tracks suppressor legality and hunting rules for all 50 states.

Frequently asked questions

Do suppressors make a gun completely silent?

No. A suppressor reduces the muzzle report, typically to a hearing-safer level, but the firearm is still clearly audible. The Hollywood 'pfft' is a myth; supersonic ammunition still produces a loud crack from the bullet breaking the sound barrier.

Can I travel across state lines with my suppressor?

Yes. Unlike short-barreled rifles, short-barreled shotguns, and machine guns, suppressors do not require ATF permission (Form 5320.20) to be transported across state lines. You should still confirm the suppressor is legal in your destination state before traveling with it.

How much does a suppressor cost in total?

Budget for the suppressor itself plus the one-time $200 federal tax stamp. Suppressor prices vary widely by caliber, materials, and brand, and your dealer may charge a modest transfer or paperwork fee on top of the purchase.

Do I need the ATF's permission from my local police chief?

You must send a copy of your application to your chief law enforcement officer as notification under the 41F rule, but the CLEO does not approve or sign off on your purchase. It is a notice requirement, not a permission requirement.

Last reviewed 2026-07-07.