Quote Originally Posted by Cieyrin View Post
A 352 It's as the animal companion table says. Companion stats and monster stats are completely different things. The Dire Bat companion has a base natural armor of +0, +4 for being a 7th level companion.
At the bottom of the link you posted it says "7th-Level Advancement: Size Large; AC +3 natural armor; Attack bite (1d8); Ability Scores Str +8, Dex -2, Con +4." That doesn't apply at all?