This is a Skywalker Sound/Star Wars sound effect created by Ben Burtt. It sounds very similar to, but shouldn't be confused with Sound Ideas, SPACE, GUN SHOTS - SINGLE BLASTER SHOT 01 on the Universal Studios Sound Effects Library. The hissing sound shouldn't be confused with Sound Ideas, SCI FI - ROCKET PEEL OFF 01 on the Hanna-Barbera Sound Effects Library. Links: https://soundeffects.fandom.com/wiki/SKYWALKER,_SCI-FI_GUN_-_TIE_FIGHTER_GUN#Audio_Samples