Complete AR-10 (Download, contains SolidWorks CAD Code).Complete AR-15 (Download, contains SolidWorks CAD Code).“80%” AR-15 Lower: Machining Instructions (Download). The first such printable firearm design made widely available online, The Liberator is a physible, 3D-printable single shot handgun, Liberator (Download, contains STereoLithography CAD.Even MORE 'Make Your Own Gun' files! CAD files and build instructions for various guns that you can build at home! CHECK ALL APPLICAL LOCAL, STATE, AND FEDERAL LAWS BEFORE ATTEMPTING TO BUILD YOUR OWN GUN AT HOME!!!