As others have said, just go out and shoot and enjoy. Then you'll know better what works and what doesn't. Beyond that I'd say you might want to look at mounting a light and call it done. Personally I went with a Surefire G2L in the Vltor mount
http://www.vltor.com/scount-mount-ocg.htm
ETA: DOH! Just looked back at the pictures closer and the light on the side rail had escaped me. My bad:o

