(a) An individual listed under Subsection (b) may purchase a firearm from a governmental entity if:
(1) the firearm had been previously issued by the entity to a peace officer commissioned by the entity who died while commissioned, without regard to whether the officer died while discharging the officer's official duties; and
(2) the firearm is not a prohibited weapon under Section 46.05, Penal Code.
(b) Individuals who may purchase the firearm under Subsection (a) are, in order of precedence:
(1) the surviving spouse of the deceased peace officer;
(2) a child of the deceased peace officer; and
(3) a parent of the deceased peace officer.