So a friend and i went to the gun shop (big 5) and he bought a mosin nagant rifle without any issues. Later in life, he decided to get a Ruger LC9 so we head to a different shop and filled out the paperwork. he later was told he was denied by the FBI. a day later he received a letter for the kitsap county sheriff stating that, due to a mental health commit, he cannot posses any firearms. Well as a teen, he was going through some hard stuff (life sucks some times) and he was committed for a few weeks for self harm (not attempted suicide). so now that he's in his mid 20's, and in perfect metal health, with no criminal record, he would like to get his rights restored. Is it possible for him, and if so how should he go about handling it? Also, can I, as a legal firearms owner sell firearms to him legally ("without knowing")?