A new measure in New York, with California considering a similar approach, would require 3D printers sold for homes and businesses to include blocking technology that prevents printing firearms, aiming to curb untraceable ghost guns.

The system would compare print designs to a digital library of firearm components and use geometric analysis to identify and block parts before printing.

Implementation is planned for 2029 or later, pending feasibility assessments and study-group findings on how to roll out the technology.

Officials worry about weapon modification, including devices that convert pistols into semi-automatic weapons, citing a Harlem shooting as an illustration of potential risks.

Privacy advocates and digital-rights groups warn about risks to personal designs, censorship of lawful speech, feasibility questions, and accuracy concerns.

Community engagement remains central to prevention, with efforts to understand youth media use and activities to tailor interventions.

Stakeholders cited include the Association of 3D Printing, Dartmouth expert Solomon Diamond, Physna, EFF, Everytown for Gun Safety, the NRA, and various constitutional perspectives.

Bragg points to cases where teens learned to assemble 3D weapons online and notes YouTube recommendations as a contributing factor, prompting ongoing platform-responsibility discussions.

Ongoing gun-violence prevention outreach is highlighted, including a cash-for-gun buyback at Manhattan’s Central Baptist Church on West 92nd Street.

The Manhattan District Attorney’s Office is hosting the buyback event on a Saturday, inviting residents to surrender weapons without police questioning.

Prices and access vary: high-end 3D printers run into thousands, while affordable models can be found for a few hundred dollars.

The initiative is framed within National Gun Violence Awareness Month as a proactive, tech-driven effort, complemented by local community programs.