HI HB1733

Establishes a Class C felony for unlicensed individuals to purchase, manufacture, or obtain firearm parts intended to assemble firearms without serial numbers (ghost guns).

Defines key terms including "ghost gun" (firearm assembled without serial number), "firearm receiver" (housing for internal firearm components), and "assembly" (fabrication or fitting together of firearm component parts).

Requires firearms dealers and manufacturers to register unfinished firearm receivers and assign serial numbers before assembly or sale to third parties, treating them as fully assembled firearms in the permitting process.

Mandates registration forms to record whether firearms were assembled from parts or created using three-dimensional printers, with serial numbers engraved on stainless steel for 3D-printed receivers.

Expands firearm registration requirements to include attempts to register firearms, firearm receivers, or assembly parts by persons disqualified from firearm ownership under state law, requiring surrender or disposal of all firearms and ammunition.