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.
, the world's largest repository for 3D-printable firearms data. Established by Defense Distributed defcad files repository 2021