Though highly unlikely to make it past security, this type of weapon would be all-too-easy to manufacture by an inmate. The pen’s hollow titanium tube/blade is cut at an angle for quick and deep skin penetration, the submitter said. Its shape is designed to aggravate the entrance wound and expedite blood loss. Preferred targets are eyes and ear canals but the “blade” is actually long enough to penetrate a lung or your heart.
Although designed as a last-ditch backup weapon for police officers by a Minneapolis cop and sales are limited to LEOs and military special forces personnel, you need to be aware of this weapon in case one were to accidentally and unexpectedly end up in the wrong hands.