It can be said that the first shotguns — simple iron tubes filled with gunpowder, rocks and pieces of scrap iron — used on a 15th Century battlefield in northern Italy put an end to the Age of Chivalry. Since that time the shotgun has been a companion in both war and peace. But of all the shotguns down through history, none stand as tall as the Remington 870 pump, favored by law enforcement, military and game hunters around the world and, quite simply, the best selling shotgun in history.