i 3b AK in position vs tight reg, and ?

[Redgyboy]

Since you have an Ace and a King as blockers in your hands, villain's range might be a little bit more skewed toward QQ, JJ, TT and smaller pairs, and I don't think he would have called a 3 bet with less than AQo. So I think he's range is probably toward sets and two pairs. In this condition I would c-bet to see where I stand, and then fold if called.

[Fnord]

I don't think he would have called a 3 bet with less than AQo.

Unless this an opponent specific read, this isn't true for just about any game I've ever played in.

The smallish flop c-bet keeps his range good and wide if we choose to double barrel here and wins the most against common newbie lines with hands like AK/AQ/JJ/TT here that won't commit but also can be stubborn for that first bet because they know you'll fire with anything on the flop.