The antitorpedo boat armament consisted of a dozen six-pounder guns (of unknown type) in casemates spaced along the hull. They fired a shell weighing about at a muzzle velocity of about at a rate of 20 rounds per minute. Their range was less than . Two Hotchkiss five-barrel revolving guns each were mounted on the fore and aft superstructures. In addition, two 37-mm Driggs-Schroeder one-pounder guns were mounted in each fighting top. They fired a shell weighing about at a muzzle velocity of about to a range about . They had a rate of fire of about 30 rounds per minute.