In the summer of 2005, Richmond, Calif., was at a turning point. The city’s gun violence rates were among the highest in the country.

“American Gun,” by Cameron McWhirter and Zusha Elinson, recounts the grim history of the AR-15 rifle in unvarnished detail. By Mike Spies Mike Spies is a senior staff writer at The Trace, a nonprofit ...

United Defense Industries Inc. of Minneapolis has been awarded a $376 million contract for the continuing design, development and testing of the Advanced Gun System, which includes the fully automated ...