Wow, Fabio! You've put a ton of great detail on that M24! The .50 cal really looks good, too.
The only thing I can see that you might want to check out is the PE fender brace on the right rear fender. In your close-up picture of that area, it appears that the PE is pulling up or is not seated firmly on the fender, and you can see some glue in the gap.
Other than that, it looks great so far!
Looking forward to seeing the finished model. How are you going to finish it? US? Japanese? Italian?