Sights that fit under stock 1.6x optic cover?

[Gunner52]

I just recently got a fs2000 but dont really like the factory optic but i like how it looks i think the gun looks kind of funny with out it. so im wondering if anyone knows of a sight that will fit inside the factory cover? one problem may be that you will need a spacer of some sort to make the sight line up with the openings in the shroud but if thats an issue i can machine something for that.
any thoughts or suggestions

[moreland281]

I just ordered mine today so I'm tagging for info as well.