Noveske Bolt Carrier AR-10 Carrier No Bolt Nitride Finish Black. Carrier fits perfectly with N6 barrels as they come with correct bolt and firing pin. Specifications for Noveske Bolt Carrier AR-10 Carrier No Bolt Nitride Finish Black: Manufacturer: Noveske Color: Black Finish: Nitride Black Fabric/Material: 8620 Steel Caliber: 7.62x51mm NATO 6.5mm Creedmoor Gun Model: AR-10 Gun Type: Semi-Automatic Rifle Additional Features: Bolt Carrier Bolt Carrier Group Case Finish: Nitride Handle Color: Black Blade Finish: Nitride Features of Noveske Bolt Carrier AR-10 Carrier No Bolt Nitride Finish Black: Carrier with Properly Staked Gas Key Bolts Package Contents: Noveske Bolt Carrier AR-10 Carrier No Bolt Nitride Finish Black What firearm models does the manufacturer say Noveske Bolt Carrier AR-10 Carrier No Bolt Nitride Finish Black is compatible with? The manufacturer says that Noveske Bolt Carrier AR-10 Carrier No Bolt Nitride Finish Black is compatible with AR-10