Wondering if anyone has a solution for this issue.

You clean off some spray paint on a black anodized aluminum part, sometimes there is this cloudy effect left behind. sometimes you there is none, sometimes its just in spots.

it is NOT left over paint.

Wondering if anyone knows that is going on when this occurs, and if there is any solution to actually fix it, other than just buffing in some oil to mask it a bit.

Here is an example photo, i had to brighten the image a bit to get it to translate so it is a bit more obvious in the picture than with actual eyes. I cant be the only one this happens to, and id like to reiterate, its not left over paint i know that for sure, but in the picture that is what it looks like.

The actual anodize coating maybe. You have removed the dye. That's all I can think of.

I realized a common factor that may or may not be a factor is the use of acetone.  I didn't know anodizing involved a dye. Test would make sense if that is the case

It’s possible you stripped the die in the anodizing off. Black anodizing uses a die in the anodizing tank, usually like e cro black or a similar die

If you want the optic to be black again I’d probably just creators or spray paint it back to black.

Anodizing creates a microporous surface, and any color is from a dye in the pores.  Depending on the cleaning method you can leave paint in the pores, remove dye from the pores, or remove the pores entirely with vigorous mechanical cleaning.  It's unlikely that you'll be able to restore the original finish, so some sort of coating (CeraKote?) is needed to give an acceptable appearance.

It's residual paint on the surface finish.

I know that you said it’s not paint.

However, through my experience with stripping paint off anodizing, I believe what you have is spray paint that’s gotten into the pores of the anodizing.

You can try to remove the rest with alcohol pads. If you rub the body of the t2 with alcohol prep pads and the pads are dirty with the same color as what you sprayed your t2 with, then it’s probably paint.
Rub the t2 with these alcohol prep pads until the wipes are clean.

Finally rub some oil on the body of the t2 then wipe off the excess.

This will shine up and darken the anodizing a bit, thereby restoring it. maybe not 100% but better than before.

Test a small spot first and then do the whole body if you like the results.

I’ve never stripped a t2. I’ve had good experiences doing this with anodized upper/lowers/acogs, eotechs etc.

Good luck!