To make their rifled barrels at home. No machine shop is required. Little room is needed. The process does not produce excessive noise. The process is virtually untraceable and unregulated.
Facebook has been reported as backing off its ban on the distribution of computer files for making guns with 3D printers. It was a fools errand to attempt to ban them.
A young Zimbabwe man has been arrested for making and possessing 3D printed guns in London, England. The pistols were popular composite designs that use steel tubes for barrel liners.
The battle over 3D printed firearms is once again heating up. This time the distributors of these files seem to be unstoppable.
H.R. 7115 known as the “3D Firearms Prohibitions Act” will ban the selling and all forms of advertising of parts kits for modern sporting rifles.