F Ballistic Adv BABL556009M AR Barrel Modern Series 5.56x45mm NATO 14.50" AR-15 4150 Chrome Moly Vanadium Steel Black QPQ M4 Carbine Length $99.94 BABL556009M show more like this Calculated in Cart DACK Outdoors F Ballistic Bbl 5.56 14.5" Car M4 1/7 $101.43 - show more like this Tactical Surplus USA