Federal law prohibits the transfer of a handgun to a person under 21 years of age except under certain circumstances. Oregon statute 166.470 (a) under prohibitions states "is under 18 years of age" but under 166.470 subsection 3 this subsection does not prohibit: The parent or guardian, or another person with the consent of the parent or guardian, of a minor from transferring the firearm to a minor to a firearm other than a handgun. Thus a parent may not transfer a handgun to a person under age 18, but there is no apparent state prohibition against doing this with a person under age 21 but over age 18. It is also my interpretation that a parent may not be authorized to permit a minor to manufacture a handgun or manufacture a handgun and transfer it to a minor, whether or not the person is a parent or guardian or has the consent of a parent or guardian. One point, however is that a person who is under 21 may not be granted a concealed handgun license.