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

Call of Duty: Advanced Warfare

 * Additionally, the Ohm heavy weapon from the Ascendance DLC can be toggled to shotgun mode.

Call of Duty: Heroes

 * Ranger

Call of Duty: Infinite Warfare

 * Banshee
 * DCM-8
 * Reaver
 * Rack-9
 * S-Ravage (Classic weapon)
 * Master Key (gun perk)
 * Additionally, the campaign version of the Type-2 assault rifle can gain the "Akimbo Shotguns" upgrade, allowing it to be toggled to shotgun mode.