Yes. Washington state law does allow for private firearms sales. However, these sales must be done through a Federal Firearms License holder in the form of a Private Party Transfer, and all applicable background checks must be completed before the buyer may take possession of the firearm.
State law requires that private sales and “transfers” of firearms (those that don't involve a federally licensed dealer as a party to the transaction) be “completed” through a licensed dealer.
How Long Does it Take to Get an FFL? It typically takes 2 months from the time the ATF receives your application, to receive your FFL. What Happens if the ATF Takes Too Long? There is an administrative remedy you can take to force the ATF to approve or deny your application.
A Type 03 FFL is the easiest to get, it's a collector of curios and relics. A Type 03 FFL is not a license to deal firearms, but to have Curios and Relics transferred and shipped directly to their home. It's the most restrictive FFL, but the easiest to acquire.
It isn't too hard to get an Washington FFL. You will be required to get a Washington State Firearms Dealer License which takes about 30-60 days to receive. Employees must also undergo background checks. The license must be renewed annually and costs $125 plus fingerprinting fees.
With passage of HB1143/I-1639, starting all Washington residents are REQUIRED to take a safety training class covering 8 specific topics before purchasing or transferring any firearm.
Mandatory 10 business day waiting period on all firearm purchases as well as an approval on background check. No longer able to release firearms in a delay or undetermined status. A Concealed Pistol License (CPL) does not speed up the process. Same-day delivery of firearms is no longer available.
However, in Washington State, transferring guns between family members requires no paperwork or government approval. You can give a gun to another family member and be done with it. There's no paperwork, no paper trail, nothing -- How's that for efficiency?