A Colorado-based startup is pushing the boundaries of firearm safety with the launch of America’s first widely available ...

The Biofire Smart Gun features built-in fingerprint and infrared facial recognition technology that only permits use by "authorized" individuals, according to the company. Biofire has called it ...

Kai Kloepfer, 19, has developed a prototype gun that unlocks with a fingerprint sensor, like a smartphone. Could it save lives? WSJ's Geoffrey A. Fowler takes it for a first test shot. Photo/Video ...