In terms of unique self-defense firearms, the LifeCard .22 stands out as one of the most modern designs in the market. Created by Trailblazer Firearms, the LifeCard 22 pistol is really a folding, credit-card–sized handgun chambered in .22LR. It is light-weight, discreet, and useful for those who price portability and concealment.What is the LifeC