Posted February 4, 2020 9:00 am by Comments

By Ben Philippi

What started as a political art project became the Liberator 12K, a prototype homemade 3-D printed 12-gauge shotgun.
Jeff Rodriguez brought two versions of the Liberator 12K to SHOT Show in Las Vegas, where he showed them off to enthusiastic crowds at Mark Serbu’s booth. There was a six-shot, revolver-style, pump-action 12-gauge shotgun, and a single shot break-action shotgun. He built them both in his basement to prove that anyone can make a working firearm with readily available parts.
All of the metal parts were purchased at Home Depot while the rest was 3-D printed thermoplastic polymer.
“A 3-D printer is basically a glorified hot glue gun on a robot,” said Rodriguez. “It’s fantastic for building prototypes.”
The six-shot revolver style action rotates using zig-zag grooves on the outside of the cylinder. Pumping the shotgun turns the cylinder with a metal pin on an actuator rod.
The Liberator homemade 3D-printed 12-gauge shotgun. (Photo: Ben Philippi /
The single-shot break-action shotgun is similar minus the six-shot cylinder. Rodriguez fired three Brenneke Black Magic slugs from the single-shot shotgun as documented in this video. “And I’m still in one piece and doing alright,” he said.
The Liberator homemade 3D-printed 12-gauge shotgun. (Photo: Ben Philippi /
He’s not sure


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