Sure -
I also remember they made an adapter for the quadrant sight to mount NV scopes like the PVS-2 to it. That's what got me to thinkin' about your idea and the offset. Since, like paintball, it will be indirect fire at best, the offset idea should work.
Here's some more pics I dug up:
Does that help you ? I'll keep looking if you need me to.
--TAG--