He's definitely around 185. He packs on a lotta muscle. First time I saw him I was like...he aint 155lbs. The true 155 fighters are the following.
Kenny Florian (although he fought at WW a long time ago surprisingly)
You can pretty much tell from their frames. I swear some of the fighters these days are trying to get too much of a weight advantage; AJ, Brian Stann (He's a huge 185 with massive power although his wrestling needs work.), Thiago Alves, etc.
Sometimes it doesn't make sense to me. Whatever you weigh come fight time should be your designated weight class. A variance of five to ten pounds is fine. But once it hits in excess of 20lbs+ that's ridiculous.