If you want an NR ACR for run and gun, get a Herron barrel with integral flash hider and a light or M4 contour (just like stock barrel) barrel. I recall some pictures of one on the forum a while ago.
The NR ACR's I've seen all had medium or heavier 18.6" barrel (plus muzzle device) installed. Too heavy and long for run and gun.
The NR ACR's I've seen all had medium or heavier 18.6" barrel (plus muzzle device) installed. Too heavy and long for run and gun.