Derwood Shuty

Shuty is a series of 3D printed firearms created by Derwood, a 47-year-old West Virginia carpenter. The Shuty is a semi-automatic pistol that is mostly 3d printed but requires some factory-made gun parts. It is chambered in 9×19mm Parabellum.

Design
The Shuty V4 MP-1 pistol uses a closed bolt simple blowback action like the Heckler & Koch UMP. The lower and upper receiver are 3D printed, a Glock barrel, metal hammer, metal firing pin and screws and bolts from the hardware store are used. The AP-9 has a buffer tube sticking out of its back which houses the action similar to an AR-15. None of the components require registration in the US, making it a privately made firearm.