Shotgun reload effects like this come from standard foley recordings of pump-action shotguns and have been reused for decades across films, television and first-person shooter games. Short isolated versions spread widely through game sound packs, editing libraries and soundboards, often alongside cues like the CSGO AWP shot, because they are instantly recognisable without dialogue. Online, creators use the reload less as realistic gun audio and more as a comedic or dramatic signal that a situation is about to escalate, which keeps it popular for memes, shorts and gameplay edits.