Trailblazer Firearms LC1-PT: Back by popular demand LifeCard .22LR Threaded Barrel. With 1/2 x 28 standard .22LR muzzle threads this threaded barrel version of the LifeCard becomes one of the most discreet suppressor hosts currently available. The all-new monolithic threaded barrel includes increased rifling length for added bullet stability clearance for loading the tilt-barrel with or without a suppressor attached and a custom Trailblazer Firearms 1/2 x 28 thread protector. - A folding single-shot .22 caliber pistol that\'s no bigger than a stack of credit cards. At .5 inches thin and weighing less than 7 ounces LifeCard will be the last gun you\'ll leave behind. - .22 caliber single action LifeCard pistol made in the USA by Trailblazer Firearms. - Discreet shape- sleek no-snag design - Size of a credit card when folded - Full-size handle for easy use when unfolded - Completely ambidextrous - Storage in handle for 3 extra rounds - Built-in safety features - Made in USA - 1/2 x 28 Threaded Muzzle