Call of Duty Wiki
Call of Duty Wiki
The subject of this article appears in Call of Duty: Modern Warfare (2019) The subject of this article appears in Call of Duty: Warzone

"20.0" barrel is a perfect balance of increased muzzle velocity and increased weight."
— In-game description

The FSS 20.0" Factory is a barrel attachment featured in Call of Duty: Modern Warfare and Call of Duty: Warzone. It is uniquely available to the MK2 Carbine.