Springfield 1911-A1 Stainless Target Replacement sights

[Norseman]

I would like to replace the existing fully adjustable target sights on my Springfield with a three dot system that is drop in (rear).  The rear sight I also would like to be beveled.  Has anyone replaced their existing sights with the championgunsights model#860-006?  Link as follows: http://www.championgunsights.com/proddetail.asp?prod=860-006
I realize that the rear target sight cuts differ between manufacturers.  Also, who makes Springfield's fully adjustable rear sights?  Help or suggestions on this would be appreciated.

[williamlayton]

I cannot speak on the make of the originals.
I like Hienie slant pros and am not in favor of adjustable.
A good smith can put any on it without a notice of the change visible.
Blessings