The proposed rule, the “Definition of Frame or Receiver and Identification of Firearms” was introduced in May and signed by Attorney General Merrick Garland. Public comments on the rule closed Thursday.

It would amend the Code of Federal Regulations, including the term “firearm” in order to regulate firearm kits, and amend the term “gunsmith” to clarify that gunsmiths must mark unlicensed guns — effectively making the individual the manufacturer. It would implement regulations on nearly all portions of a firearm.

From The Federalist: