In just the last six days, according to Wilson, 20, 000 files have been downloaded from Defcad, including more than 2, 200 downloads of files for printing the three pieces that are assembled to create the magazine.

FORBES: Gunsmiths 3D-Print High Capacity Ammo Clips To Thwart Proposed Gun Laws

Cubify.com provides more easy printing options for new users with 3D apps that generate free print files and an entire 3D printing marketplace of items to choose from.

ENGADGET: 3D Systems second-gen Cube 3D printer boasts faster prints and more materials