The origin of Mata de HK is not clearly documented, and the title is best understood as a short label used on user generated soundboards for this brief firing clip. Its popularity comes from its length, at under half a second it can be dropped into edits without covering dialogue or music. Online it circulates among gaming and meme creators who need an instant elimination cue, and it works in shooters, fail compilations and reaction videos where a longer gun sound would slow the joke down.