In 1878 two RML 9 inch 12 ton guns were proposed and installed at the battery in June 1881, but later dismounted in 1900.

In July 1896 work started on a new platform to the north of the battery for two QF 12 pounder 12 cwt naval Mark I guns which were ready on 31 August 1896.

[1] In August 1917 one of the guns fired upon and sunk a German submarine travelling on the surface close to Algeciras, which was the only action seen by Gibraltar's coastal defences during World War I.

[1] A small underground complex beneath the guns consisting of stores, magazines and shell hoists.

The main corridor extends through a door and proceeds slightly downhill to further rooms which are below a much older battery.