I'm getting an DPMS LR308 AR10 w 16" barrel built into a 338Federal, and it's coming along but I was wanting to put a different collapsible stock on it to go with the new barrel and other parts. I found some nice ones but I am unsure as to whether the Oracle has a mil-spec or commercial size stock tube, so I don't know what to buy..
Can anyone help me out and tell me if it's mil-spec or commercial? Thanks for looking.

Commercial tube on the Oracle - most often...

Measure it to make sure, if you can, this link helps explain the differences.

https://www.strongsidetactical.com/buffer-tube-variations/