Semi-automatic gun's turret of this type have been installed here in 1934. They were dismantled in 1942 by the Germans and taken to Fort Haugesund.
Firing range of these guns was about 12 km., projectile weigh - 6.5 kg.Crew consisted of 6 Gunners and one spotter.
This emplacement is partly reconstructed and prepeared for maunting restored gun's turret.