|Mass Effect 3|
The Lieberschaft 2180 shotgun, or "Eviscerator," is of human civilian design and has a unique ammunition generator. Where most modern firearms slice chips of pellets from an ammunition block, the M-22 shaves off serrated metal wedges designed to fly aerodynamically. This dramatically improves its armor-piercing capabilities, and its tight grouping ensures lethality at longer ranges than standard shotguns. This design violates several intergalactic weapon treaties, so the M-22 is not distributed to militaries.