I got a Magpul Pic rail and mounted it to the butt-stock. I also got a cheek riser. I think with the exception of paint, which will be done later this week, the AR10 is done.
One of the things I love about modular guns is the ease of modifications. Instead of having one Patrol rifle and one Dedicated Marksman Rifle, I can have one rifle with multiple configuration options.
Here is the AR10 in a Patrol configuration...

And here is the rifle in the DMR config...


A few closer shots of the custom work on the butt-stock.


