WASHINGTON (NEXSTAR) -- The congressional session may be coming to an end, but Senate Democrats say their work to reduce gun violence isn't finished. "We have the tools to address the gun violence crisis in America," Sen. Dick Durbin, (D-Ill.) said.  Senator Durbin is pushing for a federal ban on bump stocks.  It's a device that allows semi-automatic weapons to fire rapidly like machine guns.  "We cannot allow this to continue," Durbin said.  Durbin is calling on gun manufacturers to do more to help keep people safe.  "Gun manufacturers can and should do more to ensure their products cannot be converted into illegal machine guns," Durbin said.  During a Senate hearing on the dangers of bump stocks, Hawaii Democratic Senator Mazie Hirono was surprised to learn that there are more guns than people in the U.S.  "We have over 400 million guns and 330 million Americans," Hirono said. The hearing on bump stocks comes after the Supreme Court overturned a ban on the devices earlier this year. President-elect Donald Trump put the ban in place during his first administration. "The Supreme Court in various decisions. Heller was pretty much an astounding decision to me," Hirono said.  Zack Smith, with the conservative Heritage Foundation, says lawmakers are focused on the wrong issue. "And unfortunately, too many elected leaders are refusing to take the simple, yet necessary steps needed to combat this crime epidemic," Smith said.    It is unlikely a bump stocks bill will pass this congressional session.