(3) Without limiting the operation of subsection (1) or
(2), those subsections apply to a person regardless of whether the firearm
concerned was manufactured in the course of carrying on a business.
(4) If on
the trial of a person for an offence under subsection (2) the jury is not
satisfied that the accused is guilty of the offence charged but is satisfied
on the evidence that the accused is guilty of an offence under subsection (1),
it may find the accused not guilty of the offence charged but guilty of an
offence under subsection (1), and the accused is liable to punishment
accordingly.