A summoner's eidolon

[Daveak Bringer of Destruction]

can a summoners eidolon take armor prof. feats to learn to wear regular armor

[Abraham spalding]

No.

[David Thomassen]

Abraham spalding wrote:

No.

"Armor Bonus: The number noted here is the eidolon’s base total armor bonus. This bonus may be split between an armor bonus and a natural armor bonus, as decided by the summoner. This number is modified by the eidolon’s base form and some options available through its evolution pool. An eidolon cannot wear armor of any kind, as the armor interferes with the summoner’s connection to the eidolon. "

[thepuregamer]

It is not a big deal though. Just throw your entire armor bonus to natural armor and have your summoner put mage armor on him. Also put use barkskin later when it becomes available as well and his improved natural armor evolutions. His AC should be more than good enough at that point.