I posted a while back that I had just bought a DPMS Sportical, my 1st AR, & discovered a week later that it was actually a 'Oracle' model. I'm kinda slow at such things[xcitment] but mine has a bolt cover, assist & a shell deflecter which are the only differences I can see.
Gettin back to the post, I have to say I'm well pleased with it & really see no advantage to bolt assist & bolt cover but do see a use for shell deflecter as I shoot southpaw.