Buffer Tube Quick Disconnect?

[longfuse]

I have seen side-folding adapters, but was wondering if there's any sort of creature that would create a quick-disconnect point for a buffer tube mount? Sometimes I want the arm brace on, sometimes I don't- but I don't want it to be a side-folder, so I'd like to be able to pop the entire assembly off quickly, tube and all.

Does anything like this exist?

 

[BigWaylon]

If you run a standard buffer tube, you could swap from SBA3 to stock with no other changes. That’s about as quick as I could think of.

 

[longfuse]

I should have specified, it's for a Vector, the tube isn't functional.