Sales of bulletproof backpacks for schoolchildren are through the roof days after a masked gunman’s rampage left 20 kids dead at a Connecticut elementary school.

Parents began snapping up the high-tech bookbags Friday, the same day of the Sandy Hook Elementary School massacre, Elmar Uy of the Massachusetts-based armor company BulletBlocker told the Daily News.

They also sell shields that start at $175 — bulletproof inserts that can slide into backpacks, laptop bags or purses. They add about 20 ounces — it’s just like tossing a bottle of water in your bag, Uy said.

The company has seen a 300% to 400% increase in sales since the tragedy…

Online, reaction to the kiddie armor reflected sadness.

They are now selling bulletproof backpacks for children. What is this world coming to?” wrote Twitter user Courtney C. Jenkins, a pastor in Ohio.

Many called the backpacks a “sad sign of the times.”

“Duck and cover!”

Republicans really miss the Cold War.

  1. no crazier than thinking we should arm teachers and expect them to basically replace law enforcement as we continue to cut their pay and benefits. just sayin.