The pack is large (several GB). Many files are .stl or .step .
Look on the sites mentioned above. Always verify file hashes if available. fosscad mega pack
Here’s a straightforward guide to the — what it is, how to get it, and important legal/safety notes. 1. What is the FOSSCAD Mega Pack? The FOSSCAD Mega Pack is a large collection of 3D-printable gun-related files (frames, receivers, stocks, grips, magazines, accessories). It’s curated by the FOSSCAD (Free Open Source Small Arms Community) group. It’s not one file — it’s a torrent or archive containing hundreds of designs from various creators. The pack is large (several GB)