Given what Veri recently said about weapon skins no longer being able to drop above their own tier, I think something needs to change with this so that there's a reason to invest in precious guns. If you really like the ak redline, you should be able to have a way to invest time and resources into it without being punished with only 3 mod slots.
Proposal: Upgrade consumables.
These would only be craftable, and would increase the mod slots on a gun from 3 to 4. The recipe would be 2 or 3 exotics. (Not set on whether or not exotic mods would be allowed for this)
This could also be done for legendary effects, but there isn't as good of an argument for this.
The crafting recipes are expensive, so you'd really have to think about it before doing it, but it allows you to use skins you like without being penalized even if that skin isn't exotic+
Alternatively, just allow skins to drop above their tier again. The point of having skins is to allow people to choose how they want to play, so the weapon skin shouldn't affect the power level of the gun.
Proposal: Upgrade consumables.
These would only be craftable, and would increase the mod slots on a gun from 3 to 4. The recipe would be 2 or 3 exotics. (Not set on whether or not exotic mods would be allowed for this)
This could also be done for legendary effects, but there isn't as good of an argument for this.
The crafting recipes are expensive, so you'd really have to think about it before doing it, but it allows you to use skins you like without being penalized even if that skin isn't exotic+
Alternatively, just allow skins to drop above their tier again. The point of having skins is to allow people to choose how they want to play, so the weapon skin shouldn't affect the power level of the gun.