Page "Ordnance QF 18 pounder" Paragraph 81

With the establishment of the Defence Forces in 1924, the 18-pdr was the only artillery weapon in Irish service, forming the 1st and 2nd Field Batteries of the Artillery Corps.

By the following year 25 18-pdr guns were on hand and 3 more were delivered in 1933.

Additional equipment received by the army in 1941 included 4 18-pdr guns.

The regular armys field batteries re-equip with the 25 pounder in 1949 but 37 18-pdr guns were still in use with the reserve FCA.

The guns remained in FCA service until the late 1970s when they were replaced by the 25-pdr and 120 mm mortars.