I just ordered a Manners MCS-T for my .243 AI project. It will be 100% carbon fiber with a glossy finish, it should look awesome. A little expensive, but I think it will be well worth it. And they are out about half the time as McMillans.

I'm unfamiliar with Manners. Are they available for any brand action?

They come standard for 700 short actions, but I'm pretty sure they can make them for just about any action.