Ugh I've been back and forth all day now if I should get a 7.5, 11.5, or 14.5 barrel. My main reasoning for 14.5 is that I don't want to PCS to a state like Cali or move back home to Hawaii and have my expensive upper go to waste. But I want a 11.5 (including muzzle device, so more like 10.5) because it'd be lighter and more maneuverable. 7.5 is kind of ridiculously short, but that'd be neat.