In June 1900 it was proposed to mount two 6inch BL Mk. VII guns on central pivot Mark II mountings with a range of 6,000 yards capable of bearing on land batteries and on the Bay. These were installed in 1902, with magazines and shelters in October 1903.
One of the guns fired on and sunk a German submarine lying close to Algeciras in August 1917.
The guns were manned in 1936 during the bombardment of the Campamento and La Linea by Spanish Government naval units.
In the Second World War the guns were the first to fire a 'bring to' shot.
In 1954 the battery ceased its role of close defence examination but the 6-inch guns were retained and are still in position.