This is a take off from a Christensen Custom rifle
built on a Remington long/magnum action. It is very light, and seems very hard and scratch resistant. Cool carbon weave pattern. My rifle is a 338 Ultra, so I put it in a heavier stock to tame it a bit more. Has recoil pad and sling swivels. Was glass bedded to the action of my rifle. Would make a good mountain rifle stock.
These are very expensive from Christensen--$620 is base price, and depending on how you read it, it might be $150 upgrade for carbon. I honestly can't tell, but the link is: Hunting and Tactical Rifle Stocks
Will sell for $400, o.b.o., shipped to continental U.S. Anywhere else, I will need to get shipping quote.