The Defender Mark I is an eight-barreled [20 gauge] combination gun of sorts, with the eight barrels built around a double action revolver-like mechanism fired by a hammer. It has an alloy steel receiver and is finished in epoxy paint. The Defender Mark I also had two triggers; the rear trigger fired off the magnum shells, while the second trigger in front was used for “instinctive firing”.
At the time it was kind of the hot thing in the tactical world. Basically the idea was if you’re close enough to not need to aim you shouldn’t because that means you can shoot back sooner.