@DocAwe is right. Some more info. https://newatlas.com/the-magpul-fmg9-netbook-sized-folding-machine-gun/10662/ Again, never made for production/sale. However, it looks like that may have changed last year. https://www.ammoland.com/2021/01/magpul-unveils-civilian-legal-version-of-fmg-9-the-fdp-9/