House Bill 740 would outlaw the possession, creation and sale of homemade, 3D-printed guns and other firearms made after 1968 that don’t have a federally issued serial number. Federal law prohibits the manufacture of weapons that are undetectable. Supporters of this bill hope it will head off a public safety risk in the state, setting laws in place to prevent an explosion of 3D-printed weapons. Opponents say it is legislation in search of a problem as 3D-printed guns aren’t used in crimes and can be more expensive than guns purchased from stores or on the street.