What Self-defense Weapons Are Legal In Washington State

Pepper Spray:

  • Permissible for individuals above 18 years.

  • Must not exceed 10% capsaicinoids.

  • No restrictions on size or strength.

  • Must display “Washington State Pepper Spray Warning”

  • Prohibited if it sprays foam, gels, net or sticky substances.

Stun Guns:

  • Legal for individuals above 14 years.

  • Current must not exceed 1.5 milliamperes for 1/2 second.

  • Size: maximum 4.5 inches

  • Prohibited if concealed, disguised or resembles other objects.


  • Legal with a Concealed Pistol License (CPL).

  • Must be designed primarily for self-defense.

  • Must have manual safety mechanism.

  • Permits prohibited to those convicted of assault, unlawful firearm possession or threatening behavior.

Fixed Blades:

  • Legal to carry openly.

  • Blade length: less than 3 inches

Folding Knives:

  • Legal to carry concealed or openly.

  • Blade length: no restrictions.


  • Legal with Concealed Pistol License (CPL).

  • Openly carrying firearms might provoke “reasonable fear” concerns.

General Restrictions:

  • Schools, airports, government buildings: prohibited areas.

  • Employers can restrict use on private property.

  • Prohibited if convicted of certain felonies or domestic violence.

  • Use pepper spray, stun gun or Taser only when in immediate danger.

  • Must act reasonably to avoid harm.

Legal requirements can change, so it’s important to check with the latest Washington state laws and regulations before purchasing or carrying any self-defense weapon.

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