I have M4 fever, apparently...
Long term plans include a purchase of a new BCM upper. I'm looking at the 14.5" with pinned SF brake from Grant. What are the true benefits of a shorter barrel and carbine length gas system? I currently own a BCM middy. Not looking at anything right this very instant, but...
Besides weight and overall maneuverability, of course.
I cannot own an SBR in the state I currently reside in, otherwise I wouldn't ask.

