LANTAC 223/5.56 E-BCG Full Auto Style Bolt Carrier Group - QPQ Black Nitride

LANTAC 223/5.56 E-BCG Full Auto Style Bolt Carrier Group - QPQ Black Nitride Product OverviewThe LANTAC Enhanced Bolt Carrier Group (E-BCG) is designed for full-auto operation, offering increased mass and lock time. This precision-machined carrier group is coated with QPQ Black Nitride, providing a hard, smooth surface with enhanced corrosion resistance and low friction. Specifications Material: The carrier is made from 8620 steel and the bolt is manufactured from Carpenter 158 or 9310 steel, both shot peened and magnetically particle inspected. Coating: The entire carrier assembly is coated with QPQ Black Nitride, a specialized type of Nitrocarburizing Case Hardening. Weight: The carrier group weighs 11.7oz, contributing to smoother operation and increased lock time. Gas Key: The gas key is hard chrome lined for maximum wear resistance and is fitted with gasket sealer. Cam Pin: The cam pin is made from 17-4PH Stainless Steel and is hardened to H900 condition (approximately 45RC)