A Canadian rifle maker has successfully fired a 3D-printed rifle, based on firearms designer Cody Wilson’s work on a homemade handgun crafted from thermoplastics.

Mashable.com reports that “Matthew” has successfully fired 14 rounds from a .22 rifle created from a 3D printer.

The rifle represents Matthew’s second prototype and is called Grizzly 2.0. The barrel of the first prototype cracked after firing just one round, so he adjusted the barrel’s thickness and fired 14 rounds from the next model before experiencing any problems.

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