# The Firearms (Northern Ireland) Order 2004, Paragraph 9


(1) A person may, without holding a firearm certificate, have in his possession or purchase or acquire an air gun.
(2) Sub-paragraph (1) does not apply if the air gun is capable of discharging a missile so that the missile has, on being discharged, a kinetic energy in excess of one joule.
(3) A person who is under the age of 18 may not by virtue of sub-paragraph (1)—
(a) have an air gun in his possession without a firearm certificate unless he has attained the age of 14 or is under the supervision of a person who has attained the age of 21;
(b) purchase an air gun without a firearm certificate unless he has attained the age of 17.
(4) A person may, without holding a firearm certificate, have in his possession or purchase or acquire ammunition for an air gun.

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Source: https://www.legislation.gov.uk/ukdsi/2004/0110491327/schedule/1/paragraph/9 (the official version)
Page: https://openlegislation.uk/draft-firearms-northern-ireland-order-2004/schedule-1/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.