The minimum term applies in respect of a firearm specified in section 5(1)(a), (ab), (aba), (ac), (ad), (ae) or (af), (c) or section 5(1A)(a) of the Firearms Act 1968 committed on or after 6 April 2007 or in respect of a firearm specified in section 5(1)(ag) or (ba) of that Act committed on or after 6 April 2022.