Cody Wilson, founder of Defense Distributed and creator of the world’s first 3D-printed firearm, has announced development of a tool designed to defeat government detection systems built into 3D printers. The tool, which Wilson calls “Hochulization” in reference to New York Governor Kathy Hochul, alters file identification hashes without changing the functional output of printed objects. This represents an opening confrontation in what experts anticipate will be an ongoing contest between regulators and those seeking to circumvent emerging gun manufacturing restrictions.
Wilson’s company operates DEFCAD, described as hosting over 200,000 files containing designs for firearms and components such as suppressors. The detection systems being implemented rely on hash identification to flag potentially dangerous files before printing occurs. Wilson’s approach scrambles these hashes by adding bytes to files, making them unrecognizable to detection algorithms while preserving their intended function. Wilson indicates he plans to make the tool available to DEFCAD users and release it as open-source code, potentially enabling individual users to evade detection systems independently.
3D-printed firearms remain a growing but still relatively small segment of the total gun landscape in the United States. Law enforcement seizures have increased substantially, with the New York Police Department confiscating one 3D-printed gun in 2021 compared to 109 in 2024. Contemporary designs demonstrate significant capability improvements over earlier models, with some variants capable of firing multiple rounds without failure. Components such as auto-sear switches and suppressors are particularly concerning to regulators, as they enable modifications to conventional firearms or circumvent licensing requirements for restricted accessories.
New York enacted the nation’s first law mandating print-blocking software on new printers as part of its FY 2027 budget, with California pursuing similar legislation through AB 2047, which would impose comparable requirements beginning in December 2029. Neither law specifies exact technical standards for the detection systems, instead delegating implementation details to industry expert groups. Gun control advocates argue such measures address a critical gap in enforcement, as individuals legally prohibited from firearm ownership can acquire weapons through 3D printing despite existing state regulations on ghost gun manufacturing.
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