I haven't seen it posted yet, so here's the 'Steel Curtain' AK blueprint from the Warrior's Code mission. I started the grind for this on launch day, every second was worth it. :
Warzone Season 4 update has broken Modern Warfare's FiNN LMG again - Charlie INTEL
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AK-15 Steel Curtain Weapon Conversion - Call Of Duty Modern Warfare - YouTube
COD WARZONEのZRG20mmのカスタムを究める。
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Iron Curtain | COD Warzone and Black Ops Cold War Weapon Blueprint | Call of Duty
They updated "Steel Curtain" AK-47's default mag to black steel !! : r/modernwarfare
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My Steel Curtain AK clone from MW 2019 : r/modernwarfare
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Steel Curtain Ak47 | Call of Duty: Modern Warfare - YouTube
How to get EASY STEEL CURTAIN Modern Warfare Warrior's Code - YouTube
CR-56 AMAX Assault Rifle - Modern Warfare & Warzone - Zbor Gaming