Thanks guys. I really love the options. Stick, I'm really glad you chimed in. I am really looking for something low profile like that.

How do those stops like those and the LaRue attach? Similar fashion to how my rail pieces attach? Inside button & screw?

I really like the looks of that IWC also. However being that this is going to be a new feel for me, I think I'm going to try the $10ish route first. I'm already used to using a hand over top style grip, I just need a little something there for indexing and a rest that will position my hand so that my thumb sits near my light switch for manipulation.