Michael Paul Grisham Smith, Ghost Gun Manufacturing, California 2023

Michael Paul Grisham Smith, 44, of Grass Valley, is staring down a federal indictment on nine counts tied to the unlawful manufacturing and sale of untraceable “ghost” guns on the dark web. The charges, returned by a federal grand jury in Sacramento, expose a shadowy operation that turned the digital underworld into a black-market firearms bazaar.

Court documents reveal Smith initiated contact with what he believed was a dark web firearms vendor—only to be negotiating directly with an undercover Homeland Security Investigations (HSI) agent. Between December 1, 2017, and February 15, 2018, Smith built and sold eight AR-15-style rifles with no serial numbers, deliberately evading federal tracking systems. Each transaction was paid in bitcoin, masking the flow of cash in a criminal pipeline.

The weapons Smith manufactured are the nightmare of law enforcement: unregistered, untraceable, and fully functional. Known as “ghost guns,” they can be assembled from kits or 3D-printed parts, making them a growing threat in violent crime across California and beyond. Smith didn’t just skirt the law—he engineered his business to exploit its blind spots.

The investigation was conducted by U.S. Immigration and Customs Enforcement’s Homeland Security Investigations, a federal unit dedicated to dismantling transnational criminal networks. The probe highlights how law enforcement is adapting, infiltrating dark web marketplaces to catch traffickers red-handed in encrypted chat rooms and underground forums.

Smith now faces a maximum statutory penalty of 10 years in prison and a $250,000 fine if convicted. Prosecution is being handled by Assistant U.S. Attorneys Quinn Hochhalter and Justin Lee, who are building a case rooted in digital evidence, blockchain analysis, and direct undercover exchanges. The trial will hinge on proving intent, knowledge, and the deliberate erasure of identifying firearm markings.

The charges against Michael Paul Grisham Smith remain allegations. He is presumed innocent until proven guilty beyond a reasonable doubt. But the indictment sends a clear message: the dark web isn’t a lawless zone. Federal agents are watching, lurking in the shadows, ready to bring gun traffickers into the light.