Wilson and Defense Distributed <a href="https://arstechnica.com/tech-policy/2014/10/making-a-homemade-metal-semi-automatic-rifle-just-got-crazy-easy/">introduced the world to the Ghost Gunner CNC mill</a> (which could simplify the process of manufacturing an AR-15 starting from an 80 percent lower) in 2014, months before Paloma Heindorff would first learn of the company and its founder.