Lockheed AC-130 Gunship: Death Waits in the Dark - The Armory Life
DVIDS - Images - AC-130U Spooky gunship conducts live-fire training [Image 10 of 39]
AC-130 Spectre Gunship - USAF Special Operations
Lockheed AC-130 - Wikipedia
Why did the US Air Force use 25mm rotary cannons on the AC-130 ground-attack aircraft instead of the famous GAU-8 Avenger 30mm cannon from the A-10? - Quora