I don't have a scorpion, but I'm finding myself increasingly fond of the AR grips with storage in them.
Depends on the carbine/rifle. Some have storage for batteries because I have a light on the rail.
Some have an oiler, because having lube when you need it is a good thing.
Some have spare parts like an extractor, extractor spring and pin, firing pin, etc.
Depends on the gun, the history/experience of possible needs, but that extra storage could be handy.
Just a suggestion, if they make scorpion grips with storage.....