In the aftermath of the Robert F. Kennedy and Martin Luther King Jr. assassinations, the Gun Control Act of 1968 was enacted. This Act regulated gun commerce, restricting mail order sales, and allowing shipments only to licensed firearm dealers. The Act also prohibited sale of firearms to felons, those under indictment, fugitives, illegal aliens, drug users, those dishonorably discharged from the military, and those in mental institutions. The law also restricted importation of so-called Saturday night specials and other types of guns, and limited the sale of automatic weapons and semi-automatic weapon conversion kits.