I have the Smith Enterprises see-through mount, and the Smith rings. They are extremely robust parts, probably overkill for casual civilian use, but first-class quality. I have the lowest rings, because I mounted a 1.5-5X Leupold scope which has no objective bell and allows low mounting. I also have a Cheek-n-Stock leather cheekpiece that allows perfect alignment for the scope, although the scope is low enough that it can be used with no additional height at the comb, although not the best arrangement. If you mount a big scope, then one of the adjustable combs and related hardware would be just about required. The Leupold scopes are, I believe, the best value available. Not cheap, but not the most expensive either, and good quality with great warranty repair if needed.