Full length bolt on rail

IMHO, would think you could get more interest if it was built more like an amega scout rail that was leveled out with a GG&G rail, but all one piece.
The handguard section could almost be like the Aimtech, meaning sit up high and hollow underneath with lightening holes down the sides. That way your not adding so much weight.

I like your idea though, i really do, but i think the market would more geared toward to what i was describing at first.

To get precise setup on any optic. Sometimes you just cant get it where you need it with standard rails.