
SilencerCo Omega 300
- .30 cal rated
- Direct thread + QD
State Legality MatrixSuppressorsWashington
Statute-cited, not legal advice, last verified 2026-10-20
Legal
Yes. Possession is legal, but use requires the suppressor to be legally registered and possessed under federal law.
Controlling law: Wash. Rev. Code § 9.41.250(1)(c)
Registration required to use. Owning a suppressor is legal, but using one is a gross misdemeanor unless it is legally registered and possessed under federal law.
Since October 9, 2026, ATF does not enforce NFA registration, so this state-law condition decides whether an unregistered suppressor is lawful here. Controlling law: Wash. Rev. Code § 9.41.250(1)(c). Verified 2026-10-09.
What to do
Possession is lawful, but using the suppressor requires it to be registered under federal law. Register it before you shoot with it.
Contested entry
Washington has not addressed use of a federally unregistered suppressor. A suppressor or threaded barrel can also affect whether a semiautomatic host meets the state's assault-weapon definition.
The statute in practice
Washington RCW 9.41.250 addresses a device for suppressing the noise of a firearm and excepts use of a silencer that is legally registered and possessed under federal law. The statutory wording makes both registration and possession identity relevant to use.
Current 2026 Washington hunting rules do not list suppressors as a prohibited method. This is an absence-of-prohibition conclusion, not an express statewide authorization. Washington separately allows suppressor use only when the device is legally registered and possessed under federal law. Species, season, land, host-firearm, and discharge rules still apply.
Federal law
Suppressors are federally legal to own. As of January 1, 2026 the One Big Beautiful Bill Act (signed July 2025) zeroed the federal making and transfer tax on suppressors, formerly $200. Since October 9, 2026, ATF does not enforce the NFA's Form 4 and Form 1 approval and registration requirements for suppressors, SBRs, SBSs, and AOWs, as a matter of enforcement discretion announced by Attorney General Todd Blanche after the Justice Department did not appeal the August 5, 2026 Silencer Shop Foundation v. ATF ruling, whose injunction covers only the plaintiffs, their members, and their customers. ATF also does not enforce the NFA prohibitions on making, receiving, transferring, or possessing an unregistered suppressor (other than 26 U.S.C. 5861(h) and (k)), the 5861(j) ban on interstate transport of unregistered items, or the NFA marking requirement. This is enforcement discretion, not repeal: the statute remains, ATF says enforcement could resume if Congress imposes a new tax, the injunction is dissolved or overturned, or the department rescinds its guidelines, and there is no automatic grandfathering for unregistered items. ATF still accepts Form 1 and Form 4 voluntarily and maintains the NFRTR. Dealer transfers keep the Form 4473 and NICS background check under the Gun Control Act, FFLs generally sell only to residents of their own state, and they may not transfer in violation of state or local law. A suppressor does not need Form 5320.20 for interstate travel. Most states tie suppressor possession to federal registration or NFA compliance, and ATF says it cannot opine on whether an unregistered suppressor held under its enforcement discretion counts as lawfully held for state purposes; ATF also flags that it is unclear whether state courts will apply the 18 U.S.C. 926A transport safe harbor to unregistered NFA items.
Federal baseline verified 2026-10-09. Scope: Firearm suppressors (silencers) as defined by the NFA. Since October 9, 2026, ATF does not enforce federal NFA approval and registration for suppressors; dealer transfers still run Form 4473 and NICS, and many states still condition possession on federal registration. Manufacturer transfer programs are tracked separately from this state possession matrix.
Common questions
Yes. Possession is legal, but use requires the suppressor to be legally registered and possessed under federal law. Controlling law: Wash. Rev. Code § 9.41.250(1)(c).
The controlling law is Wash. Rev. Code § 9.41.250(1)(c). Possession is legal, but use requires the suppressor to be legally registered and possessed under federal law.
Registration required to use. Owning a suppressor is legal, but using one is a gross misdemeanor unless it is legally registered and possessed under federal law. Since October 9, 2026, ATF does not enforce NFA registration, so this state-law condition decides whether an unregistered suppressor is lawful in Washington. Controlling law: Wash. Rev. Code § 9.41.250(1)(c).
Current 2026 Washington hunting rules do not list suppressors as a prohibited method. This is an absence-of-prohibition conclusion, not an express statewide authorization. Washington separately allows suppressor use only when the device is legally registered and possessed under federal law. Species, season, land, host-firearm, and discharge rules still apply.
What to buy
With the NFA tax at $0 and ATF no longer requiring Form 4 approval, there has never been a cheaper or faster time to buy. These are the cans we recommend across rifle and pistol hosts.






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