AR-15 talk can be hard to understand, similar to hardware talk barrels, optics, triggers, and what everybody is doing. The debts are more likely to come in a less noticeable form: definitions, relocations of classification, the small print that trails the platform across state boundaries and into cyberspace. The source...

The 9x19mm was not made the default cartridge of a handgun by chance. It was early, fitted into service-size pistols, without causing them to be inconvenient, and continued to become better as the art of firearms and ammunition improved. A fragment of the narrative is contained within the guns themselves:...