A Bay Area man was arrested last week on suspicion of dealing firearms across state lines without a license. His Etsy store, according to federal officials, sold 3D-printed Glock-style handgun frames ...

For the last hour, in a backroom of a gun range in Arabi, Louisiana, I’ve been building Luigi Mangione’s gun. Well, not his, in the literal sense. The not-quite-finished firearm in my hands is very ...