http://www.guns.com/2013/11/07/solid-concepts-unveils-first-3d-printed-metal-gun-full-size-45-acp-1911-video/
Solid Concepts is taking 3D printing over a threshold with their just-announced 3D printed stainless steel handgun. A 1911, the Solid Concepts pistol is chambered for full-power centerfire .45 ACP cartridges.
The company is out to prove a point, that 3D printing has reached a level of maturity and precision that they can make a traditional firearm with the leading-edge technologies. Naturally, they are working with industrial-scale 3D printers, not the types of devices hobbyists have at home.
“Solid Concepts is a world leader of 3D printing services, and our ability to 3D print the world’s first metal gun solidifies our standing,” explained Alyssa Parkinson in the company announcement. “The gun is a classic 1911, a model that is at once timeless and public domain. It functions beautifully: Our resident gun expert has fired 50 successful rounds and hit a few bull’s eyes at over 30 yards. The gun is composed of 30-plus 3D printed components with 17-4 stainless steel and Inconel 625 materials. We completed it with a selective laser sintered (SLS) 3D-printed hand grip, because we’re kind of crazy about 3D printing.”