They are round-butt guns.
Give this some thought. The Hogues are sticky and will grab the skin of your shooting hand. When the gun goes off, it can make recoil really unpleasant. If you wear a glove, this is a non-issue.
Without a glove, you might want to consider wood. You might prefer something smooth (no checkering) and possibly something that covers the backstrap of the frame.
Nill makes some interesting patterns for RB N-frames. Their stocks fit the guns like they grew around them, which is important for a hard-kicking model. I have yet to order anything, but am considering it. I do not wear shooting gloves, generally, and am getting a little tired of the X-frame stocks that feel like they are trying to tear the skin off the palm of my right hand. They seem like they would be a perfect solution, but for me, I am not so sure.