The recoil lug is a built in part of the Weaver base that contacts the receiver at the front of the ejection port. (I think that is the right way to describe it). It doesn't require anything extra to install because of this, and it actually makes it easier because you slide the base forward until the lug contacts the receiver, then snug down your screws front to back. Then you go ahead and torque them to the recommended 20 inch pounds in the same manner. It's just an extra feature that some of the more expensive bases tend to have. As for the rings, I have heard very good things about the Burris XTR rings (especially in that price range) and I am currently waiting for mine to arrive. You can get them in quick detach or standard. I have also heard really good things about the Talley rings, and I can vouch for the ones they make for the Browning X-Bolt, they are simply perfect rings.

1ShotKing