"I don't want to make it easier for criminals and terrorists to bring plasticguns through metal detectors and onto airplanes, " he told CNN's Jake Tapper on Monday.
Schumer is joined by U.S. congressman Steve Israel of New York, who has introduced legislation to renew a ban on plasticguns that is set to expire later this year.
Under cross-examination by defence QC Derek Ogg Mr Wilson said that police left behind one of the plastic bags that the guns had been wrapped in and he handed it in to them two days later.