This sound effect can be found on Foley Sound Library, which was made by The Hollywood Edge. Originally a 20th Century Fox sound effect. Links: https://www.audiomicro.com/impacts-crashes-fights-heavy-face-punch-fs040303-sound-effects-107549 https://soundideas.sourceaudio.com/track/11534247 https://soundeffects.fandom.com/wiki/Hollywoodedge,_Heavy_Face_Punch_FS040303#Audio_Samples