Waɗannan turrets 855 an ɗora su gaba da babban kayan aiki na 30.5 cm (12.0 in) SK L/50 a cikin hasumiya biyu. An ɗora hasumiya biyu a gaba da babban kayan aiki a cikin manyan bindigogi guda biyu a tsakiyar layi tsakanin ramuka biyu a tsakiyar jirgin ruwa, kuma an sanya na uku da na huɗu a cikin manyan bindigogi biyu, a bayan bayan hasumiyar da ke bayan bayan jirgin ruwa. Kowane hasumiya na bindiga yana da ɗakin aiki a ƙarƙashinsa wanda aka haɗa da ɗaga kayan harsashi mai juyawa wanda ke haifar da mujallar da ke ƙasa da shi. An sarrafa hasumiyar lantarki, kodayake an ɗaga bindigogin ta hanyar hydraulically. A kokarin rage yiwuwar wuta, an gina komai a cikin hasumiyar.
405.5 kilogiram