3D-printed gun pioneer Cody Wilson has been formally indicted on a series of charges alleging he sexually assaulted a child.
In total he faces eight charges, all of which relate to his encounter with the minor in an Austin, Texas hotel room last year.
Mr Wilson reportedly solicited contact with the girl via a website called SugarDaddyMeet.com.
If found guilty, Mr Wilson could be jailed for up to 20 years.
The girl who has accused Mr Wilson of assault was 16 at the time of the incident. The age of consent in Texas is 17.
Information about the exact charges he faced has only now been released by police in Texas after court hearings initially scheduled for November and December were postponed.