(i)
telescope sights with a light beam, or telescope sights with an
electronic light amplification device or an infra-red device, designed
to be fitted to a firearm specified in paragraph (a), (b), (c) or
(e),
(ii) a silencer designed to be fitted to a firearm specified in paragraph (a), (b) or (e), and
(iii) any object—
(I) manufactured for use as a component in connection with the operation of a firearm, and
(II) without which it could not function as originally designed,