Checking statistics on the Carbonium and the Bronto armor and judging by how hard it is to get ahold of bronot pieces to manufacture it I'm assuming that theres a bug on its stats.

Since it uses Stamina and Intelligence as it's stat requirements isn't it supposed to have both a nano pool and a hit point pool additive? It's nano pool additives are similar to carbonium and carbonium has similar AC plus the NCU space and nano init. I can only assume that it was entered into the database incorrectly without the hitpoint modifiers.