Product DescriptionThe LanTac 5.56 Enhanced Bolt Carrier Group (BCG) features an M16-style carrier design to increase mass and lock time for consistent cycling in AR-15 platforms. Precision machined from 8620 steel, this enhanced carrier includes forward porting with enlarged vents and a balanced flared boss to help manage gas flow and improve reliability. The bolt is shot peened Carpenter 158 steel and is Magnetically Particle Inspected (MPI) for added confidence under hard use. Finished in a gold Titanium Nitride (TiN) coating, this BCG is designed for durability and smooth operation.Product Highlights M16-style enhanced carrier for increased mass and lock time Forward porting with enlarged vents to help manage gas and fouling Balanced flared boss design to support reliable cycling 8620 steel carrier with shot peened Carpenter 158 bolt (MPI inspected) Gold Titanium Nitride (TiN) coating for wear resistance and smooth functionSpecs Platform compatibility: AR-15 Caliber: .223 Remington / 5.56 Carrier style: M16 Carrier material: 8620 steel Bolt material: Carpenter 158 (shot peened) Inspection: Magnetically Particle Inspected (MPI) Finish/Coating: Titanium Nitride (TiN), gold Chrome lined: Yes Full auto rated: Yes Gas key fasteners: Grade 8 hardened Weight: 11.7 oz UPC: 711841794064 Manufacturer Part Number: 01-UP-556-TiN-EBCG Brand: LanTac USA LLCDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.