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Master Key (gun perk)

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For the attachment in previous games, see Shotgun (attachment).
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Master Key
Magazine Size

10 rounds (SP)
8 rounds (MP)
5 rounds (ZM)

Starting Ammunition

8+15 (MP)

Maximum Ammunition

10+60 (SP)
8+45 (MP)
5+40 (ZM)

Fire Mode


"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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