The ship was armed with a main battery of nine 16 in /45 caliber Mark 6 guns in a trio of three-gun turrets on the centerline, two of which were placed in a superfiring pair forward, with the third aft. The secondary battery consisted of twenty /38 caliber dual purpose guns mounted in twin turrets clustered amidships, five turrets on either side. As designed, the ship was equipped with an anti-aircraft battery of sixteen guns and eighteen .50-caliber (12.7 mm) M2 Browning machine guns, but her anti-aircraft battery was expanded greatly during her career.