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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 a similarly named attachment, see XRK SA87 Heavy Stock Pro.

"Heavy weight stock attachment provides stability while aiming."
— Description

The FSS Heavy Stock Pro is an attachment featured in Call of Duty: Modern Warfare. It is available to the AUG and P90 bullpup submachine guns.

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