- For the attachment in previous games, see Shotgun (attachment).
10 rounds (SP)
8 rounds (MP)
5 rounds (ZM)
- "This gun has an under barrel shotgun."
- — Description
The Master Key is a Gun Perk featured in Call of Duty: Infinite Warfare.
The singleplayer version of the Erad submachine gun is equipped with a Master Key by default.
In multiplayer, the Master Key is only available to the Epic Cerberus variant of the Erad.
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