Noveske Bolt Carrier Fits AR-15 Chrome Lined Marked Phosphate Full Auto Rated Black. Properly staked gas key which includes firing pin retaining pin and cam pin. For AR-15s. Specifications for Noveske Bolt Carrier Fits AR-15 Chrome Lined Marked Phosphate Full Auto Rated Black: Manufacturer: Noveske Color: Black Finish: Phosphate Black Gun Make: AR Platform Gun Model: AR-15 Gun Type: Semi-Automatic Rifle Rifle Additional Features: Bolt Carrier Bolt Carrier Group Case Finish: Phosphate Handle Color: Black Features of Noveske Bolt Carrier Fits AR-15 Chrome Lined Marked Phosphate Full Auto Rated Black: Phosphate Finished Carrier for AR-15s Package Contents: Noveske Bolt Carrier Fits AR-15 Chrome Lined Marked Phosphate Full Auto Rated Black What firearm models does the manufacturer say Noveske Bolt Carrier Fits AR-15 Chrome Lined Marked Phosphate Full Auto Rated Black is compatible with? The manufacturer suggests that Noveske Bolt Carrier Fits AR-15 Chrome Lined Marked Phosphate Full Auto Rated Black is compatible with AR-15