Just got my Choate Tactical stock today. It does feel a little heavy, but I think it will help balance the muzzle heavy feeling of the heavy barrel. Overall quality seems very good, especially for the price. I'm switching from a blind mag to a detachable mag and I'm still waiting on parts so I'll post pictures when I'm ready to put it together. It's alot stiffer than the factory tupperware so I'm hoping it will solve some of the problems I've had shooting off a bipod.
There is a write up with pictures here