field guns were used on both the land front and as anti-landing and close defence weapons on the coastal forts. gun models included both older fixed carriage guns and more modern weapons with counter-recoil systems. the most common models were the 6 inch siege gun model 1877 with a 190 pood version used on both field and fortress mounts and a lighter 120 pood barrel version on field carriage. 42 line () battery gun model 1877 and 34 line () light field gun model 1877 were other older field artillery pieces used at the fortress. 76 mm model 1902 gun was a newer rapid fire field gun with a counter recoil system. the 76 mm model 1902 gun was also used as an anti-aircraft gun on a modified "rosenberg" mount. the land front weaponry also included a variety of smaller caliber anti-storming guns, caponier guns and other mixed artillery pieces. the reserve guns included different older models up to bronze-barrelled mortars.