The M16 rifle is equipped with a scope featuring a small red arrow that aids in targeting. To aim, one simply aligns this arrow with the intended target and pulls the trigger. The action of pulling the trigger is described as minimal and almost imperceptible, comparing it to common, simple movements like turning a page or scratching an itch.

This effortless action contrasts sharply with the gravity of its outcome—taking a life. The author reflects on the dissonance between the trivial nature of the trigger pull and the significant moral weight of killing, highlighting the unsettling ease with which such serious actions can occur in a combat scenario.