this is how its reported in the New York Post:
Suffolk County officials reveal allegedly illegal arsenal of Long Island resident - NYPOST.com
...Steiner also offered weapon-repair services, despite not having a license to do so, officials said.
Suffolk County DA Thomas Spota said his office spent months analyzing the arsenal, and discovered three devices known as “auto sears,” which turn rifles into machine guns....
...As part of a sting, an undercover cop asked Steiner to fix a revolver and the suspect allegedly obliged....
bullshit, they probably found three shoelaces.