Synopsis As Introduced Amends the Criminal Code of 2012. Prohibits the transfer, purchase, manufacture, importation, possession of unfinished frames or receivers and unserialized firearms. Provides a process for serializing unfinished frames or receivers and unserialized firearms. Provides that it is unlawful for a person to manufacture or distribute a firearm using a three-dimensional printer under specified circumstances. Provides that a first violation is a Class A misdemeanor and that a second or subsequent violation is a Class X felony.