Try doing some real research and stop believing the propaganda you hear coming from that glowing box in front of you.
The Gun Control Act of 1968, Public Law 90-618
(d) It shall be unlawful for any person to sell or otherwise dispose of any
firearm or ammunition to any person knowing or having reasonable cause to
believe that such person --
(1) is under indictment for, or has been convicted in any court of, a crime
punishable by imprisonment for a term exceeding one year;
(2) is a fugitive from justice;
(3) is an unlawful user of or addicted to any controlled substance (as
defined in section 102 of the Controlled Substances Act (21 U.S.C. 802));
(4) has been adjudicated as a mental defective or has been committed to any
mental institution;
(5) who, being an alien, is illegally or unlawfully in the United States;
(6) who has been discharged from the Armed Forces under dishonorable
conditions;
(7) who, having been a citizen of the United States, has renounced his
citizenship; or
(8) is subject to a court order that restrains such person from harassing,
stalking, or threatening an intimate partner of such person or child of such
intimate partner or person, or engaging in other conduct that would place an
intimate partner in reasonable fear of bodily injury to the partner or child,
except that this paragraph shall only apply to a court order that --
(A) was issued after a hearing of which such person received actual
notice, and at which such person had the opportunity to participate; and
(B)(i) includes a finding that such person represents a credible threat to
the physical safety of such intimate partner or child; or
(ii) by its terms explicitly prohibits the use, attempted use, or
threatened use of physical force against such intimate partner or child
that would reasonably be expected to cause bodily injury.