F Ballistic Adv BABL300008M AR Barrel Modern Series 300 Blackout 10.50" AR-15 4150 Chrome Moly Vanadium Steel Black QPQ Pistol Length DRP Profile $99.61 BABL300008M show more like this Calculated in Cart DACK Outdoors F Ballistic Bbl 300blk Rigid $101.09 - show more like this Tactical Surplus USA