Place this clip at the scare payoff, not during the buildup, and follow it immediately with a reaction sound to sell the aftermath. Pair it after a tense quiet lead-in and before the FNAF jumpscare scream if you want a second, bigger hit in the same sequence.
About this sound
This is a 6.7-second custom jumpscare effect built for a sudden scare moment, with a harsh burst designed to hit without warning. It feels tense and startling, the kind of jolt that makes listeners jump and then laugh at the shock. The clip is credited to RagingLeopold Studio as a custom jumpscare sound.