(Mobile Specific) Is there something like UE3's DLE Constant available?

Mobile specific.

I’ve a problem with my gun and hands lighting. (screen attached) is there something like UE3 DLE in UE4?
I would like to add a constant light (it was ambientlight i supose in UE3 DLE component) to lit my hands and gun with different color because they aren’t fiting with rest of the scene. I can’t just color my base textures because reflection (metal + rough) is creating this light.

Basically gun should be darker how can I achieve that?
Hope someone will be able to help. btw hand is using bad texture now so please look at the gun only


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