Intense excerpt from the "Pech River Boys" documentary.
40mm & 105mm Guns Engage Hostiles
Sorry if its a repost, but its worth watching again. Thermal imaging of the 40-mm gun station of an AC-130 Spectre gunship over Afghanistan. In the course of the video, the 40-mm and the 105-mm guns engage various hostiles on the ground some ten thousand feet below.