Quite a few sights will work for you. The BlackGold sight will certainly work--another, is the new Spot Hogg Wrap---which can fit any of the Spot Hogg sights.
I recently fitted a wrap to my Hunter Hogg It, and the difference was extreme!!! The pins are as bright as if using a light--and when the light is used the pins are very defined!!!
The great thing about the light is, it's encased in the wrap frame, and so directs all the light to the fiber optics. As well as the 'glow' than is usually associated with exposed lights has been drastically reduced with this design.
It is quite an impressive set up.