LifeCard .22LR “The last gun you’ll leave behind.”

Measuring in at just 3.3-inches long, 2.1-inches high, and .5-inches thick, it is slimmer than most wallets. To add to the sleight profile, the gun is machined from aluminum billet and given a hard-coat black anodization. These touches have imbued the LifeCard with a smooth, unobtrusive look both when folded and fully deployed. To fight rust and corrosion, the ambidextrous, single-shot handgun features a steel tilt-up barrel, bolt, and trigger all coated in Isonite. And because this weapon can only fire off a round at a time, the handle has storage for an extra 4 rounds. $399