Can you fill in your location? It's hard for us to recommend things like FPS without knowing where you are. For example, here in Ontario, 400FPS is the limit on AEGs.
Things like RAS are personal taste for the most part. I personally prefer a clean looking gun and avoid them.
You might want to invest in a better hopup sleeve, though. Something like Prometheus or Systema.
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"The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."
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