This specific item refers to a miniature, often non-functional, representation of a firearm component designed to convert a semi-automatic weapon into a fully automatic one. The full-size version is a regulated device under federal law. These reproductions are created using additive manufacturing techniques and often presented as decorative keychains.
The interest surrounding these items stems from the debates over gun control, accessibility of technology, and the interpretation of existing legislation regarding firearm modifications. Historically, devices that enable automatic fire have been heavily restricted, leading to legal and ethical discussions about the creation and distribution of even non-functional replicas.
