Well you will have to drop the legs and attach a Fgrip for CQB, (IMHO).
I need to find a place to host some low detail pics of my old M17. I went pure CQB and wrapped the front in heat shielding, so it would never heat up. I also made cross vents on the side of the upper to allow better airflow. I'll see if imageshack will host them.
BTW, That is an outstanding M17.