 Admiral Scheer 's primary armament was six 28 cm ( 11 @.@ 0 in ) SK C / 28 guns mounted in two triple gun turrets , one forward and one aft of the superstructure . The ship carried a secondary battery of eight 15 cm ( 5 @.@ 9 in ) SK C / 28 guns in single turrets grouped amidships . Her anti @-@ aircraft battery originally consisted of three 8 @.@ 8 cm ( 3 @.@ 5 in ) L / 45 guns , though in 1935 these were replaced with six 8 @.@ 8 cm L / 78 guns . By 1940 the ship 's anti @-@ aircraft battery was significantly increased , consisting of six 10 @.@ 5 cm ( 4 @.@ 1 in ) C / 33 guns , four twin @-@ mounted 3 @.@ 7 cm ( 1 @.@ 5 in ) C / 30 guns and up to twenty @-@ eight 2 cm ( 0 @.@ 79 in ) Flak 30 guns . By 1945 , the anti @-@ aircraft battery had again been reorganized and comprised six 4 cm guns , eight 3 @.@ 7 cm guns , and thirty @-@ three 2 cm guns . 
