I ran a vortex sparc with a 3x magnifier for about an hour on the range. Originally had it one of my rifles with an eotech but sold that a while back... Seems to be similar to what you're asking about?
http://i45.tinypic.com/9qabyb.jpg
^^ Pic related. Almost the same setup.
However, it wasn't for me.
IMO, its kinda pointless when you can just get an illuminated reticle on a 1-4x scope like a Leupold Mark AR mod 1.

