While more than a few gun makers over the centuries have sold guns in numbers that meet the million mark, it's rare to do so with just a single model. But Remington did it, and they did it with a gun that defines simplicity, reliability, and dependability: the Model 870 shotgun. Now, Gun Digest, in collaboration with noted shotgun author and expert Nick Hahn, brings you a celebration of that one fantastic gun in Gun Digest Book of the Remington 870.