The House next week is expected to approve a 10-year extension to a law that bans the manufacture, sale or ownership of firearms that can't be picked up by a metal detector.
The law requires guns and gun parts to contain enough metal to be picked up by a metal detector.
The extension of the Undetectable Firearms Act comes in the midst of a developing debate over the ability to produce weapons parts using 3-D printers. That technology has led to increased calls for the renewal of the Undetectable Firearms Act.
Rep. Steve Israel (D-N.Y.) is one of the members who has called for a ban on 3-D printed guns.