Mitchell Defense Enhanced Carbon Cutter ArmorLube M16 5.56mm NATO/.300 BLK Bolt Carrier Group Black. It combines ArmorLube's advanced DEVCOM-developed DLC coating - tested to 97000 abrasion cycles - with precision-machined carbon-cutting skids that disrupt fouling as the carrier cycles. This dramatically improves cleanliness and reliability under high-volume use. The Carpenter 158 bolt pairs with a billet extractor and O-ring for consistent extraction and SP4-coated gas rings extend service life while reducing friction. The 8620 M16 carrier is precision ground to perfect flatness minimizing drag and ensuring even wear. The gas key is Permatex-sealed and OCKS-staked for maximum durability while a chrome-plated firing pin and rubber extractor gasket further enhance ignition performance. This BCG is engineered for professional-grade reliability and demanding operational environments. Specifications for Mitchell Defense Enhanced Carbon Cutter ArmorLube M16 5.56mm NATO/.300 BLK Bolt Carrier Group: Manufacturer: Mitchell Defense Color: Black Fabric/Material: Steel Caliber: 5.56x45mm NATO .300 AAC Blackout Gun Make: AR Platform Gun Model: AR-15 Features of Mitchell Defense Enhanced Carbon Cutter ArmorLube M16 5.56mm NATO/.300 BLK Bolt Carrier Group ArmorLube DLC coating with 97000 abrasion-cycle performance Precision carbon-cutting carrier skids reduce fouling during cycling Carpenter 158 bolt with billet extractor and O-ring Precision-ground 8620 M16 carrier ensures flat low-friction bearing surfaces SP4-coated gas rings for extended wear life OCKS-staked Permatex-sealed gas key for maximum retention Chrome-plated firing pin and rubber extractor gasket for enhanced reliability Ideal for high-volume suppressed or professional-use rifles Package Contents: Mitchell Defense Enhanced Carbon Cutter ArmorLube M16 5.56mm NATO/.300 BLK Bolt Carrier Group What firearm models does the manufacturer say Mitchell Defense Enhanced Carbon Cutter ArmorLube M16 5.56mm NATO/.300 BLK Bolt Carrier Group is compatible with? The manufacturer suggests that Mitchell Defense Enhanced Carbon Cutter ArmorLube M16 5.56mm NATO/.300 BLK Bolt Carrier Group is compatible with AR-15Mitchell Defense 625001: Enhanced Carbon Cutter ArmorLube M16 5.56mm NATO/.300 BLK Bolt Carrier Group Black