MS HB1336

Creates a felony crime of selling, offering to sell, or transferring unserialized unfinished firearm frames/receivers or unserialized firearms (including 3D-printed firearms) to anyone other than licensed federal firearms dealers, importers, or manufacturers, punishable by fine up to $25,000 and 1-3 years imprisonment, or 3-7 years for repeat offenses.

Makes it unlawful beginning January 1, 2025 to knowingly possess, transport, or receive an unserialized unfinished frame/receiver or unserialized firearm unless it has been serialized by a federally licensed dealer using their license number as a prefix, punishable as a misdemeanor ($2,500 fine and/or up to 1 year jail) or felony for repeat offenses (5-10 years imprisonment).

Requires that any firearm manufactured using 3D printing technology must be serialized before August 1, 2024 or before reaching a stage where it can be readily completed or converted to a functional firearm.

Exempts from serialization requirements: permanently inoperable firearms, antique firearms (pre-1968), firearms rendered inoperative, unfinished frames possessed by bona fide suppliers for transfer to manufacturers/importers, and unserialized firearms inherited within a 30-day period.

Directs the Commissioner of Public Safety to issue public notice regarding these requirements on the Department of Public Safety website and to licensed firearms dealers and manufacturers.