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CoD4

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All games/Modern Warfare

Call of Duty 4: Modern Warfare

Released 5 November 2007

Infinity Ward

Home
CoD4
Perks
Iron Lungs

MultiplayerPerk 3

Iron Lungs

Effect

Holds a sniper's breath steady for longer.

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Other CoD4 perks

C4 x2
Claymore x2
Special Grenades x3
Bomb Squad
RPG-7 x2
Bandolier
Frag x3
Stopping Power

Key facts

Iron Lungs

Game: CoD4
Product: Multiplayer
Slot: Perk 3

Sources

Call of Duty 4: Modern Warfare — Multiplayer WeaponsSecondary reporting
Call of Duty Maps · accessed 6 Aug 2026
Multiplayer weapon roster grouped by class from a community reference. Identity only — no in-game statistics are recorded for these weapons yet.

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Call of Duty weapon, map, killstreak and patch data — sourced to the official publication it came from, versioned by patch, and kept separate for multiplayer and Warzone. Unverified values are shown as unverified.

Data last verified 6 August 2026 against 38 recorded sources. How we know this.

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Killstreaks.com is an independent Call of Duty database. It is not affiliated with, endorsed by, or sponsored by Activision Publishing, Inc. Call of Duty is a trademark of Activision Publishing, Inc. Game names, statistics and patch information are recorded as published by their respective owners.
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