Defense Distributed announced it plans to make 3D gun blueprints - including a single-shot pistol called "The Liberator", an AR-15 lower receiver, and a complete Beretta M9 handgun - available on August 1, after reaching a settlement with the federal government.
"There is a possibility of irreparable harm because of the way these guns can be made", said U.S. District Judge Robert Lasnik.
Washington State's attorney general will lead a lawsuit seeking to block the Trump administration from permitting the public to download computer files for designing 3D-printed guns, his office said in a statement Monday.
He says the company said in court it actually began distributing gun files Friday and by Sunday, 1,000 people had downloaded 3D plans for AR-15 semi-automatic assault rifles.
The lawsuit was filed after the federal government quietly settled with Wilson on a case that effectively makes it legal to share the controversial files online.
"As a result of the Department of State's settlement with Defense Distributed, terrorists, criminals, and individuals seeking to do harm would have unfettered access to print and manufacture risky firearms", 21 attorneys general wrote in a letter to Secretary of State Mike Pompeo on Monday.
President TrumpDonald John TrumpClinton maxes out to 19 Democratic House candidates Tucker Carlson slams immigrant lawyer as "citizen of country controlled by conquistadors" Trump highlights praise from judge on reuniting families his administration divided MORE tweeted Tuesday morning that he was "looking into" the issue and that the 3D printing of guns "doesn't make much sense".
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Trump backed off from his threat to slap hefty tariffs on automotive imports as part of the agreement. The company credits Trump's plan to impose tariffs on imported steel and aluminum for the move.
There followed a four-year legal battle, with Defense Distributed joining forces with the Second Amendment Foundation - which defends the right to own guns - to sue the State Department.
Attorney General Maura Healey is suing the Trump administration for allowing a website to post plans that let people print a gun with a 3D printer.
President Trump weighs in on 3D-printed guns.
The department plans to transfer oversight of firearm exports to the Commerce Department, which does not impose prior restraint on public speech.
But just how risky are so-called 3-D printed guns, and why has this emerged as a hot topic? Its downloadable plans are set to go online on Wednesday. They fear terrorists could make their own firearms "in just a couple clicks", according to a tweet from Everytown for Gun Safety. They also sought the restraining order, arguing the 3D guns would be a safety risk.
Under the settlement, the Trump administration will allow downloadable guns for unlimited public distribution in any form.
Mr. Grewal was one of 21 state attorneys general who signed a letter Monday to Secretary of State Mike Pompeo and Attorney General Jeff Sessions asking them to withdraw the settlement.