1887 (FarCry 3)

“A classic lever-action shotgun that is devastating in close quarters. This variant has a 28-inch barrel which gives a slightly more range than other shotguns.”
— in-game description
“The 1887 is a classic lever-action shotgun that’s been knocking around since the Wild West. It showed up in action movies and video games and, bang, it was as popular as Swedish furniture. A couple of years ago, Vaas’s men somehow managed to get their hands on a shipment of 1887s. Sure, there are newer designs, but you can’t flip cock them and flip cocking makes a man.”
— Survival Guide