So, what could possibly make the gun situation in America any worse?  Charlton Heston gets reincarnated?  A national police strike?  A hit new reality show called How To Get A Gun for Fun, Profit and Death?  Or how about this — a machine that will allow anyone to print their own working gun. Nice, huh?

For most of us a typical Do-It-Yourself Project might involve constructing that garden shed the wife has always wanted, tiling the bathroom or painting the kitchen. But for a YouTube user known simply as Derwood, it was 3D printing a working semi-automatic weapon which by the way is well within the boundaries of the law. Shown off via a YouTube video published late last month, Derwood’s creation is self-described as a “mostly” 3D-printed firearm with roughly 95 percent of the construction done through prints. The resulting product (seen in the video below) is completely void of a serial number, impossible to trace back to Derwood, and entirely legal — which is perhaps its most controversial feature.

Though Derwood’s 3D-printed automatic weapon (dubbed the Shuty-MP1) isn’t the first of its kind to make waves, he does claim he’s the first to combine 3D-printed parts with store-bought components. With 95 percent of the weapon coming by way of a 3D printer, the West Virginia native opted to use a real Glock barrel along with a metal hammer, firing pins, bolts, and springs to complete its construction. Although the gun boasts elements of a store-bought gun, the fact each component is merely an accessory (meaning they require an actual gun for use) allows the finished product to remain legal.

“No one had ever tried to get a semi-automatic 3D printed gun working before…I’m just one of those types, I like to find new things that people say can’t be done,” Derwood tells Wired. “It’s simple, but it works. The gun shoots great.”

Related: Scientists unveil new ‘4D-printing’ technique that produces shape-shifting objects

Derwood’s decision to manufacture this home-built semi-auto stems purely from a desire to challenge his engineering skills — aside from manufacturing it to serve as a big middle finger to those pushing gun control laws. Because of this, he in no way intends to share his plans online (something which the State Department has recently begun cracking down on) and further points out that criminals shouldn’t even be interested in his creation. Why? After successively firing roughly 18 rounds, the printed part surrounding the gun’s barrel starts to melt and change its shape unless the shooter allows it to cool.

“If you keep shooting, it’s going to fail,” he continues. ” That makes it not such a desired weapon for a criminal.”

Although Derwood feels it’s not an ideal weapon of choice for a criminal, 18 consecutive rounds could still do some damage. In a separately published video, Derwood displays the gun’s firing power, shooting eight 9mm rounds towards three soda cans sitting next to a piece of plywood. If you happened to watch the video under the assumption he was using a real, traditionally constructed gun, you’d have no idea most of the thing was developed with a 3D printer. I’m not sure if that’s impressive or alarming.