40th Regiment Royal Artillery

40th Regiment Royal Artillery – The Lowland Gunners – was a regiment of the Royal Artillery in the British Army. It supported 19 Light Brigade in the field artillery role. It was structured into Fire Support Teams equipped with MSTAR, and the regiment's three gun batteries, equipped with eighteen L118 Light Guns. The Clan Home tartan is was by the regiment.

The regiment was based at Home Lines, Thiepval Barracks, Lisburn, County Antrim. Following the SDSR review, it was announced in July 2011 that 40 Regt would disband along with elements of 19 Lt Bde.

Batteries

 * 6/36 (Arcot) Battery
 * 137 (Java) Battery
 * 38 (Seringapatam) Battery
 * 49 (Inkerman) Battery

137 (Java) Battery re-subordinated to 26 regiment Royal Artillery

129 Battery previously served with the regiment but has now joined 4 Regiment RA.

49 Battery has be re-subodinated to the Joint Ground Based Air Defence unit.

38 Battery is subordinated to 19th Regiment.