Ar15.com user [HaveBlue] has been working for some time on a 3D printed lower receiver, and now reports that the parts are fully working. Using a Stratasys 3D printer from the 90’s [HaveBlue ...
had a polymer lower receiver and used AR-15 magazines. “Building a new AR-180 was just a natural progression for us,” commented Mark Westrom, president of ArmaLite. It was light, had great balance, ...