Impressed one of my mentors 2.25" group with .223, at 300 yards, in light wind...

[Metal god]

yep it flips in and out and lays pretty flat against the scope . I attachés directly to the scope so you can adjust where you want it .
http://www.amazon.com/Wheeler-Engin...&sr=8-3-fkmr0&keywords=weaver+anti+cant+level