Drop In Auto Sear Keychain
Federal authorities, specifically the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), have consistently maintained that possession of these items can lead to severe criminal charges. The classification of such a device as a "machine gun" under the National Firearms Act (NFA) means that possession without proper registration and licensing is a federal felony, punishable by significant prison time and substantial fines.
The term "keychain" is often used as a marketing tactic to bypass internet sales restrictions or to provide a veneer of legality. Sellers may market these items as "bottle openers," "decorative keychains," or even "wall hangers". However, the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) maintains a clear and uncompromising stance: Machine Gun Classification Drop In Auto Sear Keychain
There are three reasons: