Mitchell Defense Enhanced Carbon Cutter ArmorLube M16 5.56mm NATO/.300 BLK Bolt Carrier Group

Mitchell Defense Enhanced Carbon Cutter ArmorLube Bolt Carrier Group. The MD Enhanced Carbon Cutter ArmorLube BCG features ArmorLube's advanced DLC coating tested to 97,000 abrasion cycles, with precision-machined carbon-cutting carrier skids that disrupt fouling as the carrier cycles. The Carpenter 158 bolt pairs with a billet extractor and O-ring for consistent extraction, and SP4-coated gas rings extend wear life while reducing friction. The 8620 M16 carrier is precision ground to flatness for minimal drag and even wear. The gas key is OCKS-staked and Permatex-sealed for durability, with a chrome-plated firing pin and rubber extractor gasket for reliability. Ideal for high-volume, suppressed, or professional-use rifles. Caliber compatibility: 5.56x45mm NATO and .300 AAC Blackout. Package contents: Mitchell Defense Enhanced Carbon Cutter ArmorLube M16 5.56mm NATO/.300 BLK Bolt Carrier Group. Compatible with AR-15 platform.