Who produced “BLUNDERGAT” by HAUNTGAT?

The BLUNDERGAT and its upgraded versions, Wiki

Stream Treyarch_Studio Listen to Blundergat playlist online for free on SoundCloud

Steam Workshop::Call of Duty: Black Ops II Blundergat

How To Get THREE BLUNDERGATS Easter Egg Tutorial (Black Ops 4 Zombies Blood of the Dead)

Blundergat - Compilation (FINAL)

ArtStation - Blunder Revolver

Simple Blundergat, Meh, it works., Danny

Steam Workshop::Call of Duty: Black Ops 2 Blundergat (Pump) Script + Hud Icon

I made someone this blundergat, they went back on , took a better picture than I ever could and listed it for double the price, am dumbfounded - iFunny Brazil

Pixilart - Blundergat from BO4 by Ripper