The LifeCard .22LR / .22WMR by Trailblazer Firearms is a single-shot, folding handgun meant to match the duration and width dimensions of a typical bank card (3.375″ × 2.125″) which has a thickness of about 0.5 https://life-card-handgun937164.icingblog.com/61940306/overview-with-the-lifecard-credit-card-gun