Composite armor only on the M1A1

Machinery of War Discussion Ground Vehicle
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1

I was wondering if this is a bug or not.
M1A1

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M1A2
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SEP
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TROPHY
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image1208×495 198 KB

And the latest Abrams
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I might be wrong but why is the side armor that can protect against Light vehicles is only present on the M1A1 and not the other versions.

1 Like
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I don’t get it, the only difference is that it shows up in the X-Ray, this doesn’t change anything.