Barrel

Barrel can refer to:
*Barrel (Power-Up) - A power-up in Dead Ops Arcade, Dead Ops Arcade II: Cyber's Avengening and Dead Ops Arcade 3: Rise of the Mamaback.
*Barrel Changing - An attachment in Call of Duty Online.
*Barrel Choke - An attachment in Call of Duty: Black Ops 4.
*Double-Barreled Shotgun - A shotgun in Call of Duty: World at War, Call of Duty: Black Ops, Call of Duty: WWII and Call of Duty: Vanguard.
*Double Barrel - A gun perk for the Trek-50 - Ranger in Call of Duty: Infinite Warfare.
*Dual Barrels - An integral attachment for the VPR in Call of Duty: Infinite Warfare.
*Tri-Barrel - A gun perk for the M.2187 - Salvo in Call of Duty: Infinite Warfare.
*Long Barrel (or Extended Barrel) - An attachment in Call of Duty: Black Ops II, Call of Duty: Black Ops: Declassified, Call of Duty: Black Ops III, Call of Duty: Black Ops 4, Call of Duty: Mobile and Call of Duty: Black Ops Cold War.
*Rifled Barrel - An attachment in Call of Duty: Infinite Warfare.
*Fat Barrel - An Operator Mod for the VKM 750 in Call of Duty: Black Ops 4.
In addition to these, a multitude of barrel attachments appear in main games since Call of Duty: Modern Warfare.