Part of the gun that the police believe was used to kill the C.E.O. of UnitedHealthcare was made by a 3D printer using a popular design found online.

At first glance, the gun in the police photographs — the one the authorities believe Luigi Mangione used to kill the chief ...

Attorneys general in Minnesota and New Jersey sued Glock on Thursday, accusing the company of making handguns that are easily modified to fire as illegal machine guns through a cheap add-on known as a ...

He was rarely in the news, only making headlines when a book about his business was published in 2012, after a divorce from his first ... world of small arms" and "succeeded in establishing the ...