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More than 1,000 people have already downloaded plans to print an AR-15-style semiautomatic assault rifle ahead of a change in the law Wednesday that will make it legal to do so. In a court settlement last month, the U.S. government agreed that people will be able to legally download plans for 3-D printed guns—nicknamed “Ghost Guns” because they don’t have serial numbers and are untraceable by authorities. Pennsylvania Attorney General Josh Shapiro, who has been fighting to keep 3-D printed guns out of his state, revealed that plans are already gaining popularity online ahead of the law change. The Pennsylvania Attorney General’s Office asked a judge for a restraining order that would block a website run by gun-rights group Defense Distributed, which holds downloadable plans for the guns, from being accessible in the state. Washington Attorney General Bob Ferguson also announced Monday he is leading a lawsuit by eight states and the District of Columbia to block the legalization of downloading 3-D gun plans. President Trump expressed his concern about 3-D guns Tuesday morning, saying: "I am looking into 3-D Plastic Guns being sold to the public. Already spoke to NRA, doesn’t seem to make much sense!"