Does a CZ 455 American take 3/4" or 11mm Rings

Re: Does a CZ 455 American take 3/4" or 11mm Rings

11 mm

got mine from UTG, can be used for 3/8 inch or 11 mm
depending on which way you flip the clamp plate.
You can see the difference between the top and bottom edges of the plate

utg-22rings.jpg