, ALQ-142  Electronic Support Measures  (ESM) system and optional nose-mounted  forward looking infrared (FLIR) turret. It carries the Mk 46, Mk 50, or Mk 54  torpedo , AGM-114  Hellfire missile , and a single cabin-door-mounted  M240  7.62 mm (0.30 in) machine gun or  GAU-16  .50 in (12.7 mm) machine gun. The