Griffy’s the brains behind the 3D-printed shotgun slugs. He’s the one who designed the CAD files, acquired the Solidoodle 3, printed the slugs out, filled them with led, and mailed them to ...

They look things one step further and 3D-printed a shotgun slug that completely works, firing from a shotgun and all. Advertisement. The slugs were shot from a Mossberg 590 12-gauge shotgun.

We covered the first 3D-printed gun back in July. The Defense Distributed group sprung up soon after, with the purpose of creating an open-source gun -- a Wiki Weapon -- that can be downloaded ...