Grizzly (.22-caliber rifle)
The Grizzly and the Grizzly 2.0 is a 3D printed .22-caliber rifle created around August 2013. It was created using a Stratasys Dimension 1200es printer. It was created by a Canadian only known by the pseudonym "Matthew" and told The Verge that he is in his late 20s, and his main job is making tools for the construction industry.
The “Grizzly 2.0″ has 50 percent larger barrel with a rifled bore, a larger receiver and new hammer. In a video posted online by the creator, the Grizzly seemed to have successfully fired a Winchester Dynapoint .22-caliber bullet, like the Liberator .380. The only metal in the Grizzly is a 1-inch roofing nail plus whatever metal is in the cartridge.
"Matthew" said the rifle had taken 3 days to build, and about 27 hours to print it. He revealed it took him 13 hours to print the receiver, 6.5 hours to print the barrel, 5 hours to print the stock and 2 hours to print the rifle's internal parts.
- First 3-D printed rifle fires bullet, then breaks, NBC News, July 26, 2013. (archive)
- World's first 3D-printed rifle gets update, fires 14 shots, The Verge, August 4, 2013.(archive)
- 3D-Printed Rifle Shoots 14 Rounds Before Breaking, The Blaze, August 5, 2013. (archive)
- World's Possibly First 3D-Printed Rifle Is Fired on YouTube, Mashable, August 2013. (archive)