I would like to sell a handgun and see what firearms are available for sale by other individuals in Oregon
Dick — You might want to join Mike Brown's highly regarded list:
There are almost 700 members with many in Oregon. For Sale items are posted from time to time.
Oregon is a private sale state — dealer is not needed. Many astute firearm sellers will only sell to guys who have a Concealed Carry License. That means that they have passed a background check, both Fed and State and are not felons.
Kevin Starrett has just published a book on Oregon gun laws.
What have you got to sell?