MIAMI (CBSMiami/AP) – U.S. Senator Bill Nelson, along with two other senators, is pushing for an extension of a federal law which bans undetectable guns.

The Florida senator, Sen. Chuck Schumer and Sen. Patrick Leahy say technology of so-called 3-D printing has advanced to the point anyone with $1,000 and an Internet connection can access the plastic parts that can be fitted into a gun. Those firearms can’t be detected by metal detectors or X-ray machines.

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Schumer says that means anyone can download a gun cheaply, then take the weapons anywhere, including high-security areas.

The technology has recently advanced to create handguns capable of shooting several shots, rather than just one, before it ceases to function. Schumer also says the guns can now be made with all plastic parts, and no metal.

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A blueprint for one such firearm was recently downloaded more than 100,000 times, Schumer says.

“We are looking at a world in which anyone with a little bit of cash can bring an undetectable gun that can fire multiple bullets anywhere — including planes, government buildings, sporting events and schools,” Schumer said. “3-D printers are a miraculous technology that have the potential to revolutionize manufacturing, but we need to make sure they are not being used to make deadly, undetectable weapons.”

The federal law which bans undetectable guns expires December 9th.

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