4.—(1) The Licensing Officer may issue, subject to such conditions as he sees fit, a licence authorising the licensee to possess or control any arms or class or category of arms described in the licence.
(2) A licence to possess arms shall be in Form A set out in the Schedule.
(3) Subject to paragraph (4), every licence to possess arms shall expire 2 years after the date of issue.
(4) Where a person who is licensed to possess any arms, subsequently acquires any other arms, the term of any licence to possess those other arms shall be concurrent with the term of the licence to possess the first-mentioned arms.