Daniel Defense 0707809136018 DD Barrel 5.56x45mm NATO 16″ Black Phosphate Finish 4150 Chrome Moly Vanadium Steel Material Midlength with Lightweight Profile for AR-15
Rosco Manufacturing PB-16-HB-300BLK-8-P Purebred 300 Blackout 16″ Nickel Boron Stainless Steel Barrel
Diamondback 556C16H50B8NYR DB Barrel 5.56x45mm NATO 16″ Black Nitride Chrome Moly Vanadium Steel Barrel