top of page

Are Threaded Barrels Legal in Washington State?

Threaded barrels are legal in Washington State with restrictions under federal and state laws. Learn what you need to know before buying or using one.

If you are wondering whether threaded barrels are legal in Washington State, the short answer is yes, but with important conditions. Threaded barrels themselves are not illegal, but their use and possession can be regulated depending on how you use them.

Understanding the laws around threaded barrels helps you avoid legal trouble. This article explains the rules, restrictions, and common mistakes people make when owning or using threaded barrels in Washington.

What Are Threaded Barrels and Why Are They Used?

Threaded barrels are gun barrels with threads at the end. These threads allow you to attach accessories like suppressors or muzzle brakes. Many gun owners use threaded barrels to customize their firearms for better performance or noise reduction.

Knowing what threaded barrels do helps you understand why the law treats them carefully. They can change how a firearm operates or sounds, which is why regulations exist.

  • Threaded barrels allow attachment of suppressors, which reduce gunshot noise and recoil for safer shooting experiences.

  • They enable mounting of muzzle devices that improve accuracy or reduce muzzle rise during firing.

  • Threaded barrels can be swapped on some firearms, giving users flexibility in firearm customization.

  • Because they can be used with silencers, they attract legal attention under federal and state laws.

Using threaded barrels responsibly means knowing the legal limits and how they affect your firearm's classification.

Federal Laws Affecting Threaded Barrels in Washington

Federal law regulates firearms and accessories nationwide, including threaded barrels. The National Firearms Act (NFA) controls items like suppressors that can be attached to threaded barrels.

Even if Washington allows threaded barrels, you must follow federal rules when using them with certain accessories. Ignoring these laws can lead to serious penalties.

  • The NFA requires registration and tax stamps for suppressors attached to threaded barrels, making unregistered use illegal.

  • Threaded barrels themselves are not NFA items, but attaching a suppressor without paperwork is a federal crime.

  • Federal law prohibits possession of short-barreled rifles or shotguns without proper registration, which can involve threaded barrels if altered.

  • The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) oversees compliance and enforces penalties for violations involving threaded barrels and accessories.

Following federal rules is essential regardless of Washington’s state laws to avoid criminal charges.

Washington State Laws on Threaded Barrels

Washington does not specifically ban threaded barrels. However, state laws regulate firearms broadly, including restrictions on certain modifications and accessories.

You must comply with state laws on firearm possession, transfers, and modifications when owning threaded barrels in Washington.

  • Washington law requires background checks for firearm purchases, including those with threaded barrels, to ensure lawful ownership.

  • The state prohibits possession of firearms altered to be fully automatic or with illegal modifications, which may include misuse of threaded barrels.

  • Threaded barrels used with suppressors must comply with both state and federal laws, including registration requirements.

  • Washington has restrictions on carrying firearms in certain public places, which apply regardless of barrel type.

Understanding these rules helps you stay within legal limits when using threaded barrels in Washington.

Common Legal Mistakes with Threaded Barrels in Washington

Many gun owners make errors that lead to legal trouble when dealing with threaded barrels. Knowing these common mistakes can help you avoid problems.

Being informed about what is allowed and what is not will protect you from fines, confiscation, or criminal charges.

  • Attaching a suppressor to a threaded barrel without registering it under the NFA is a major federal offense often misunderstood by owners.

  • Failing to conduct background checks when transferring firearms with threaded barrels can violate state laws and result in penalties.

  • Modifying barrels to create illegal short-barreled rifles without proper paperwork is a frequent legal pitfall.

  • Assuming threaded barrels are unregulated accessories can lead to ignoring important state and federal restrictions.

Always double-check laws before buying or modifying firearms with threaded barrels to avoid these common errors.

How to Legally Purchase and Use Threaded Barrels in Washington

Buying and using threaded barrels legally requires following both state and federal rules. Washington residents should be aware of the proper steps to stay compliant.

Taking the right actions ensures you enjoy your firearm safely and legally.

  • Purchase threaded barrels from licensed dealers who comply with federal and state firearm sale regulations.

  • Complete all required background checks and paperwork before acquiring firearms or barrels with threading.

  • If attaching a suppressor, file the necessary NFA paperwork and pay the tax stamp before possession or use.

  • Keep documentation of all transactions and registrations to prove legal compliance if questioned by authorities.

Following these steps helps you avoid legal risks and enjoy your firearm accessories responsibly.

Enforcement Reality and Practical Tips for Washington Gun Owners

While laws exist, enforcement can vary. Washington law enforcement generally focuses on serious violations involving firearms, including misuse of threaded barrels.

Understanding enforcement trends and practical tips helps you stay safe and lawful.

  • Law enforcement may inspect firearms during stops or investigations, so always carry proper documentation for threaded barrels and accessories.

  • Violations involving unregistered suppressors or illegal modifications often lead to felony charges and severe penalties.

  • Washington police prioritize public safety and may confiscate firearms that violate state or federal laws.

  • Consulting legal experts or local authorities before modifying firearms can prevent misunderstandings and legal trouble.

Being proactive and informed is the best way to avoid enforcement issues with threaded barrels in Washington.

Alternatives and Considerations for Firearm Customization

If you want to customize your firearm but are unsure about threaded barrels, consider other legal options. Washington offers various lawful ways to enhance your shooting experience.

Exploring alternatives can give you benefits without legal risks.

  • Using non-threaded barrels with factory-approved muzzle devices avoids complex legal requirements.

  • Purchasing firearms with pre-installed features that comply with state laws reduces modification risks.

  • Exploring legal accessories like grips, sights, and stocks can improve performance without barrel changes.

  • Joining shooting clubs or training programs helps you learn safe and legal firearm customization practices.

Choosing legal alternatives ensures you enjoy your hobby without breaking laws or facing penalties.

Conclusion

Threaded barrels are legal in Washington State, but you must follow both federal and state laws carefully. They are not banned, but their use with suppressors or modifications can trigger strict regulations.

Understanding the rules, avoiding common mistakes, and following proper purchase and registration steps will help you stay safe and lawful. Always keep documentation and consult experts if unsure. Responsible ownership protects your rights and enjoyment of firearms in Washington.

FAQs

Are threaded barrels illegal in Washington?

No, threaded barrels themselves are legal in Washington, but their use with suppressors or certain modifications must comply with federal and state laws.

Do I need a permit to buy a threaded barrel in Washington?

You must pass background checks and follow firearm purchase laws, but no special permit is required just for a threaded barrel.

Can I attach a suppressor to a threaded barrel without registration?

No, attaching a suppressor requires federal NFA registration and a tax stamp. Using one without this is illegal.

Are there penalties for illegal use of threaded barrels?

Yes, improper use or possession can lead to fines, confiscation, and criminal charges under both state and federal laws.

Where can I get legal advice about threaded barrels in Washington?

You can consult licensed firearm dealers, attorneys specializing in gun laws, or local law enforcement for guidance on legal compliance.

Related Guides

Are Studded Tires Legal in Iowa?

Discover the legality of studded tires in Iowa, including restrictions, penalties, and when you can use them safely.

Are Fireworks Legal in Rhode Island?

Discover the legal status of fireworks in Rhode Island, including restrictions, penalties, and practical guidance for residents and visitors.

Are RZR Street Legal in Georgia?

Discover whether RZR vehicles are street legal in Georgia and the conditions required for legal use on public roads.

Are Carts Legal in Florida?

Discover whether carts are legal in Florida and understand the conditions and restrictions that apply to their use and ownership.

Are Feals Gummies Legal in Texas?

Discover whether Feals gummies are legal in Texas and understand the regulations affecting their use and sale.

Is Death Penalty Legal in PA?

The death penalty is not legal in Pennsylvania; it has been abolished and no executions occur.

Are Golf Carts Street Legal in Arizona?

Discover if golf carts are street legal in Arizona and the conditions required for their use on public roads.

Are Non-Lethal Guns Legal in California?

Discover the legality of non-lethal guns in California, including ownership, use, and restrictions under state law.

Is Lane Splitting Legal in West Virginia?

Lane splitting is illegal in West Virginia. Riding between lanes can lead to fines and safety risks.

Is It Legal to Own a Raccoon in Tennessee?

Owning a raccoon in Tennessee is generally illegal without a special permit due to wildlife regulations.

Is Marijuana Legal in Montana?

Marijuana is legal in Montana for adults 21+ with limits on possession and use. Medical marijuana is also allowed with a card.

Are Suppressors Legal in Oklahoma?

Suppressors are legal in Oklahoma with federal registration and state compliance requirements.

Is Salvia Legal in Missouri?

Salvia is legal in Missouri with no specific state restrictions, but local laws and federal rules may apply.

Is Delta 9 Legal in Missouri?

Delta 9 THC is legal in Missouri for medical use with restrictions but illegal for recreational use.

Is It Legal to Sleep in Your Car in Florida?

Sleeping in your car in Florida is generally legal but subject to local laws and private property rules.

Is Hitchhiking Legal in Oregon?

Hitchhiking is legal in Oregon with specific rules and restrictions to ensure safety and compliance with state laws.

Are Binary Triggers Legal in Tennessee?

Discover the legality of binary triggers in Tennessee and understand applicable restrictions and penalties under state law.

Is Bovada Legal in New York?

Bovada is not legally licensed in New York, but residents often access it. Learn the risks and legal details here.

How to File for Legal Separation in California

Learn how to file for legal separation in California with clear steps, requirements, and tips to navigate the process smoothly.

Are Switchblades Legal in Georgia?

Discover the legality of owning and carrying switchblade knives in Georgia and the conditions that apply under state law.

Is Open Carry Legal in New York?

Open carry is generally illegal in New York, with strict rules and exceptions for licensed individuals.

Is It Legal to Collect Rainwater in Florida?

Collecting rainwater in Florida is legal with some restrictions to protect water resources and property rights.

Are THC Drinks Legal in Alabama?

THC drinks are illegal in Alabama for recreational use but allowed only with strict medical restrictions.

Are Electric Scooters Legal in California?

Discover the legality of electric scooters in California, including usage rules, restrictions, and penalties under state law.

bottom of page