The subject of this article appears in Call of Duty: Modern Warfare (2019) The subject of this article appears in Call of Duty: Warzone
For other similarly named attachments, see Barrel.

"Stainless steel barrel extension increases muzzle velocity and extends range. Additional weights stabilize shots but slows handling."
— In-game description

The 407mm Extended Barrel is a barrel attachment featured in Call of Duty: Modern Warfare and Call of Duty: Warzone. It is uniquely available to the AUG submachine gun.

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