Sig 556 rear diopter on a 522?

[QuailJeeper]

Has anyone succesfully zeroed in a rear rotary diopter from the Sig Sauer 556 on a 522?
I have the factory sig (aka williams) sights on my 522 and don't like not being able to adjust for windage and elevation without tools.

I realize the diopter probably won't be accurate when moving to the 100, 200, etc settings, but it least it may be an adjustable rear sight that works with the original front post.

Anybody know of other rear sights that work with the sig front post?

[cvnhank]

jjnavarro,
I have this sight set up with my 522; Sig front sight and rear rotary diopter. It works well enough at the indoor range (50ft max). I was able to keep my shots on paper. I think it is a decent combo. I hope I'm not too general.
Hank

[QuailJeeper]

Thanks, Hank.

[QuailJeeper]

I picked up a 556 diopter on the sigarms556 forum, and went to the range last night.

In general, it shot low until I set the diopter to the 300m setting. At 300m, it was right on.