This sinister-look contraption was mounted to the end of the GAU-8’s barrels and used baffles to reduce the flash and disperse the gasses from the muzzle away from the cockpit and engines.

Each bullet had the length of a pint bottle. By 1974, the GAU-8 Avenger was ready for testing. The seven-barrel, gatling-style gun fired from as high as 25,000 feet and as low as 100 feet.