Relating to the prosecution of the criminal offense of the possession, manufacture, transport, repair, or sale of certain devices intended to modify handguns.

HB 2356 makes it a criminal offense to intentionally possess, manufacture, transport, repair, or sell specific devices designed to modify handguns to shoot automatically without manual reloading. The bill directly affects individuals handling prohibited items like automatic handgun modification devices, machine guns, short-barrel firearms, armor-piercing ammunition, zip guns, and other listed devices - unless registered federally or classified as curios/relics. Key provisions expand criminal penalties under Texas Penal Code Section 46.05 for these specific devices, with the law applying only to offenses occurring on or after its effective date (September 1, 2025). The bill does not change existing laws for offenses committed before this date.