TacFire BAR9MM16BN AR Barrel 9mm NATO 16″ Black Nitride Finish 4150 Chrome Moly Vanadium Steel Material with Threading & 1:10″ Twist for AR-15
Diamondback 556C16H50B8NYR DB Barrel 5.56x45mm NATO 16″ Black Nitride Chrome Moly Vanadium Steel Barrel
CMMG 55DC70A Barrel Sub-Assembly 5.56x45mm NATO 16.10″ Black Nitride Finish 4140 Chromoly Steel Material Midlength with Medium Taper Profile for AR-15
CMMG 57D0476 Replacement Barrel Kit with Bolt Carrier Group, 5.7x28mm 16.10″ Threaded, Black, Radial Delayed Blowback, Fits AR-Platform