Questions about the "Orion"

[rayraynomics]

Hey guys,

I'm fairly new to mods and what not so I have a few questions regarding the orion...

1. What does it consist of?
2. What are the perks of having one?
3. What does it consist of and is it good to have?
4. Does it also fit on a Provari?
5. Are there other mods to add that looks like an Orion other than the Orion?

Thanks!