Are you interested in the surrounding 3D printed firearms?
continued to distribute files through decentralized platforms like The Pirate Bay or dedicated GitHub mirrors like the defcad-repo legal status of these files in specific U.S. states today? DEFCAD - The world's largest 3D gun repository
Increased accessibility allowed for a larger community of hobbyists and developers to experiment with and refine the technology. defcad files repository 2021
Standard capacity magazines (30-round AR, 17-round Glock, 25-round Ruger 10/22) were ubiquitous. The menendez magazine for Glock, updated in 2021 to use a simple spring from Amazon, was downloaded over 500,000 times across all platforms.
Despite the Ninth Circuit victory, the year was not without its legal battles. On October 22, 2021, Everytown for Gun Safety Action Fund, Inc. filed a lawsuit against Defcad, Inc. and several individual defendants in the Southern District of New York (case number 1:21‑cv‑08704). The complaint asserted claims for contributory infringement and other violations, demanding expedited discovery and emergency relief. Are you interested in the surrounding 3D printed firearms
Files came in .STL, .STEP, and .SLDPRT formats. By 2021, DefCAD had moved away from simple STLs toward project-based zips containing G-code (pre-sliced instructions for specific printers like the Prusa i3 MK3S+) to ensure dimensional accuracy.
The Turning Point of 3D-Printed Firearms: Inside the 2021 DEFCAD Files Repository DEFCAD - The world's largest 3D gun repository
The site claimed to have over 2,500 community users and offered access to over 100,000 models in its history. To access these files, users needed to create an account and agree to terms stating they are "U.S. Persons," as per 22 C.F.R. 120.15, and that the files were not available to people in certain states like New Jersey or California without a Federal Firearms License (FFL).
DEFCAD is a digital database of open-source and user-submitted computer-aided design (CAD) files for firearms, ammunition, and related tactical gear. Founded by Defense Distributed, the repository was created to host the files for the "Liberator"—the world's first fully 3D-printable plastic pistol.
To comply with complex federal and state injunctions, DEFCAD transformed its infrastructure. By 2021, it was no longer a completely public, anonymous download site. Instead, it operated behind a strict compliance wall.
