I'm building a new rifle and I've got some Talley lightweight rings that have had 20 MOA cut in the bases. However, I've got a rail on my target/practice rifle and it would be nice to move the scopes between the two. I'm trying to keep the new build as light as possible so, if I swap to a rail and rings, I'd like to find the lightest possible. I'd need a set of 34mm and 30mm rings along with a rail. The Talleys are about 2.5 oz. I don't know of anything that's going to come in under 4-6 oz. Suggestions? It's a Defiance Rebel .264 win mag action with 8-40 screws.