Except as otherwise provided in this section, on or after January 1, 2027, a person may not manufacture, sell, offer for sale, purchase, receive, or transfer a machine gun convertible pistol. The Department of State Police shall adopt regulations to implement this section, including publishing a list of prohibited machine gun convertible pistols. In this subsection, “immediate family member” means a spouse, child, stepchild, parent, stepparent, sibling, or stepsibling. A person who lawfully obtained and possesses a machine gun convertible pistol may sell or otherwise transfer a machine gun convertible pistol to an immediate family member who is not prohibited under federal or State law from possessing a firearm. A person who is not otherwise prohibited under federal or State law from possessing a firearm may purchase or otherwise receive a machine gun convertible pistol from an immediate family member who lawfully obtained the pistol.