Have you tried these mags yet? I found them a big PITA to load - but on my standard config RRA Entry Tactical, with the Ceiner kit and AAC M4-2000 and sub-sonic ammo, it is HUGE fun.
I mounted a Streamlight TLR-1 on the lower side of my hanguard, and with my EoTech I now have short range night shooting capability. I was able to make a beer can dance at 25 yards no problem - AND nothing in the way of noise. Great fun!
Brownells gives military the same price it gives C&R FFLs so I will be getting them there. They don't have the smoke in stock right now so I will have to back order them and wait (not like I need them right now anyways). I am also going to order the POF .308 lower in the next day or so.