Ok talley integrated ring level - Talley Anti-Cant Indicator for Lightweight Alloy Scope Mounts

I purchased a set of Talley, Modern Sporting, picatinny scope rings and this fit on the ring perfectly. Should also work with any Talley ring-mounts. The big pro of this set up is that, as long as you have tightened each side evenly, the bubble should give you a perfect indication of the level of your rifle. All you need do, once gun is level, is level the crosshairs. Of course, this requires a stable clamping set up to hold your gun while you adjust the scope. The con of the system, is that you have to pick your head up off the stock to see the bubble, which is less than ideal. That docks it 1 star. Overall, a useful setup, that integrates into my scope mounting system.