On the globe of compact firearms, few designs have caught as much notice as the folding credit card gun. Formally known as the LifeCard 22LR, this unique pistol from Trailblazer Firearms folds right down to the size of a stack of bank cards, making it Among the most discreet handguns that you can buy.What Is the LifeCard 22LR?The LifeCard 22LR (typ