Everyone has mentioned a lot of good stocks.
Mcmillian and Manners are the top Two if you want composite, followed by HS and then B&C. I have a B&C on one gun, does it work? Yes, but I find it to be two felexible when shooting of a Bi-Pod.
If you want something Different that stands out form the crowd, look no futher than Joel Russo. Not only is his stuff TOP NOTCH! He is one hell of a guy to deal with. He says what he is going to do when he is going to do it, unlike most in the gun business.
His Laminate A5 is a exact copy of the Mcmillian A5. I now have three of them because they are that good. When some people say a 95% inlett run enless you like woodworking. Joels are 100% drop in.
He is active on this sight, so if you would like to talk with him, send him a message or look at his website. Home_Page
I might sound Bias, but his stuff is great and will be ordering more to replace a B&C.
Here is a couple pics of his work.
Oh, if you want something even nicer, he can help you out with this as well! He helped me put this together for my dad.