Washington state requires that all handguns owners register their weapons. Businesses that sell guns are required to make sure the gun is registered properly to the person who buys it. If an individual sells a gun he will need to make sure the gun is properly transferred into the new owner's name.
The Washington State Department of Licensing has a website where you can download the private disposition/ transfer form. This is the form you will need to use if you sell, lose or otherwise dispose of a gun that is registered in your name.
Complete Necessary Forms
The private disposition/ transfer form requires specific information. This includes information about the buyer, the seller and the gun itself. This will include the gun's serial number, type and identifying characteristics. Signatures of buyer and seller must be original and valid.
Mail Completed Form
Send your documentation to the Washington State Department of Licensing at Department of Licensing, Firearms Unit, P.O. Box 9649, Olympia, Washington, 98507-9649. Retain a photocopy of the form for your records.
Observe State Gun Laws
Gun laws can vary from state to state. In Washington, for example, you need a permit to carry a handgun. There is also no law regarding the castle doctrine. You should familiarize yourself with Washington's gun laws prior to buying or selling a gun.
Read More: Gun Theft Laws