Second Amendment Foundation Vs. Everytown: What is a Gun?
Update, August 20, 2026: a federal court has now answered a version of the question this post asks. On August 17, 2026 the ATF’s 2022 rule defining unfinished frames and receivers as firearms was held unconstitutional as applied to Defense Distributed and SAF members. Read the 2026 ruling. Before they ban all the guns, they…