A US federal judge in Seattle has blocked the release of software that allows customers to 3D-print firearms.
Gun access to rights group Defense Distributed was forced to put downloadable gun plans online Wednesday.
The company has signed an agreement with the Trump of directors in June to allow legally to publish the instructions.
But eight states and the District of Columbia has sued the government Monday to block the regulation, arguing the untraceable firearms were a risk to security.
US District Judge Robert Lasnik issued a temporary restraining order halting the release hours before the 1 August deadline, saying the plans could fall into the wrong hands.
“There are 3D printers in the public colleges and public spaces, and there is the possibility of irreparable harm,” he said.
While Defense Distributed has been expected to publicize the plans on Wednesday, more than 1,000 people have downloaded the files for the construction of an AR-15 rifle-the same gun used in most of America’s mass shootings since Friday.
How to print your own firearmHow was the printable gun developed?
The arguments have started in 2013, during the so-called crypto-anarchist Cody Wilson has shown the world’s first 3D-printed gun.
Files showing how to replicate the process have been made immediately available on the Defense Distributed website, and downloaded hundreds of thousands of times.
It has led the U.S. State Department to order them to be removed from the internet.
There followed a four-year legal battle, the Defense Distributed join forces with the Second Amendment Foundation, which advocates for the right to possess weapons to continue the Department of State.
Last month, in a surprise move, he won his case, with the Ministry of Justice to give Americans ‘access, discuss, use, and reproduce” the technical data.
Mr. Wilson has hailed his victory as the beginning of “the age of the downloadable gun”.
But critics are concerned, he will see a massive rise in so-called ghost, the guns, the weapons, the government is aware of and is unable to trace.
Since the action began, Defense Distributed has been working on a new gun designs and has also created a milling device known as the Ghost Gunner, which can turn the purchase of parts online, in a fully working weapon.What are the states fighting for the release?
The lawsuit against the Trumpet of the directors has been filed in Seattle, Washington, by the state’s Attorney General Bob Ferguson.
New York, New Jersey, Massachusetts, Connecticut, Pennsylvania, Oregon, Maryland, plus the District of Columbia are involved.
The complaint calls the August 1 release of gun models “a bell that cannot be un-rung”.
“The Government has made no decision about the national security implications of the agreement, or its effects on sovereign US states’ ability to protect the safety of the people inside their borders.”
In addition, 20 attorneys general have written to the State Department and the Department of Justice on the lock of the weapon plans online.