Sold as "novelty bottle openers" or "wall art."
If you’d like a technical drawing of how the dimensions differ from a real auto sear (making it inert) or a mock product listing for a site like Etsy, let me know. Drop In Auto Sear Keychain
A standard DIAS is a small part designed to be placed inside a semi-automatic AR-15 lower receiver. Its purpose is to override the trigger mechanism, allowing the firearm to fire continuously with a single pull of the trigger—effectively converting it into a machine gun. Sold as "novelty bottle openers" or "wall art
under federal law, regardless of whether it is attached to a firearm. Legal Status & Risks Federal Classification Drop In Auto Sear Keychain