Shotgun

A  is a type of weapon featured in the Call of Duty series. Unlike other firearms, most shotguns fire a volley of multiple pellets at a time, but have a limited range. These traits make shotguns extremely devastating at close range, but literally useless at a distance. Shotguns can be manually cocked, pump-action, lever-action (where the user must pump/cycle the lever between shots), semi-automatic, or fully automatic. Pump-action/lever-action shotguns usually have a lower rate of fire, but more damage and range, while semi-automatic/fully automatic/break-action shotguns usually have a higher rate of fire, but lower range. In nearly all Call of Duty multiplayer modes, shotguns are primary weapons. In Call of Duty: Modern Warfare 2, however, they are secondary weapons.

Call of Duty: Black Ops (Nintendo DS)

 * Remington 870
 * Ithaca M37

Trivia

 * In Call of Duty: Modern Warfare 3, shotguns have a slightly different sprint than any other primary weapon; primary weapons point down when sprinting and the shotgun points up.
 * In Call of Duty: Black Ops II, the pump-action shotguns are pumped after the last shell has been fired (unlike other games).