Various munitions could be mounted on the one centerline and four under-wing hardpoints, including bombs, missiles and rockets; payloads of up to 2,000 lb may be carried upon the centerline and the two innermost under-wing pylons, while the outer pylons can carry up to 1,000 lb. All four of the under-wing hardpoints are plumbed for drop tanks to extend the aircraft's range, Italian aircraft are also fitted with a fixed aerial refueling probe. Optical reconnaissance pods can be carried externally on the centerline hardpoint. Wingtip rails are provided for infrared guided air-to-air missiles such as the AIM-9 Sidewinder and MAA-1 Piranha. Italian aircraft are fitted with a M61 Vulcan 20 mm rotary cannon on the port side of the lower fuselage. The United States denied the sale of the M61 to Brazil, thus its AMXs are instead fitted with two 30 mm DEFA 554 revolver cannons.