The Sage Int. ghostring sights look like this
The front (closeup) along with the porting I had done by a local smith. The porting has worked very well.
If I do it again, I'll go with either the MMC rear or current LPA rear and a single blade brazed on for the front sight. The Sage's aren't bad though, they are durable, after I had a loose rear aperture replaced by the manufacturer.
EricO