Need some help identifying the brand of stock. It’s for a post-64 model 70 sporter barrel channel.

Takeoff McMillan from magnum winlite with a fresh pad; or ordered like that from McMillan.

https://mcmillanusa.com/stock/winchester-classic/

Here is the weight.

The brown precision winlite has a slightly different inlet; and less of a dimple at the nose of the comb.

FWIW, concur with AKW on the stock. Fairly certain that is what it is. The weight is also correct as I recall the one I had. With a thin pad they will be a touch under 2.0 lbs.

BB