Their improved armament reflected designs by British and German navies. The "Clemson" class was initially armed with four 4"/50 caliber guns; one situated on the forecastle, two on the superstructure deck amidships and one on the quarterdeck. The quarterdeck gun was later moved to the aft deck superstructure to make room for depth charge roller tracks. The 4"/50 guns had limited elevation and could not fire at aircraft. A 3"/23 caliber gun was installed for anti-aircraft warfare defense, along with two .50 caliber machine guns. The mainmast was shortened to improve the field of fire for the 3-inch gun. Mk 6 and Mk 9 depth charges were equipped in US service and were deployed via the aforementioned roller tracks or "K" or "Y" guns. The destroyers also mounted twelve torpedo tubes in four triple mounts capable of firing American 21 inch torpedo torpedoes. The tube mounts were sited amidships between the superstructures. The destroyers carried no spare torpedoes.