In total, almost 100 of various modifications of the AC-130 were developed, which differ from each other in the set of weapons and EW systems. At the moment, the US Army has a 21 unit of such aircraft. All of them are assigned to the Special Operations Command.
Of these, 8 airplanes are AC-130H, each of which is armed with two 20-mm Vulcan type guns, 40-mm L60 gun, and also 105-mm M102 gun. Three more aircraft version of the AC-130U equipped with the same weapons, with the exception of "Volcanoes". Instead, they installed one 25-mm air cannon GAU-12 / U.
AC-130 is equipped with a variety of locators and sights, allowing you to strike at any time of the day.