The LifeCard .22LR / .22WMR by Trailblazer Firearms is an individual-shot, folding handgun made to match the size and width Proportions of a normal bank card (3.375″ × 2.125″) which has a thickness of around 0.5 https://life-card-handgun784746.starsblogger.com/793579/overview-in-the-lifecard-charge-card-gun