The "pom-pom" fired its  shells at a rate of 300 rounds per minute, out to  at an elevation of +45°. The  muzzle velocity of the Hotchkiss gun gave its  shells a range of  at an elevation of +21°. The Lender gun's muzzle velocity of  gave it a range of  with its  shell.
Anti-aircraft armament varied between ships. The first four were completed either with a pair of 39-calibre  "pom-pom" guns or 58-calibre  Hotchkiss guns. The second batch of four were fitted with a single 30-calibre  Lender gun.