Product DescriptionThe LANTAC Mil-Spec+ Bolt Carrier Group (BCG) is a high-quality, precision-manufactured upgrade for AR-15 platforms chambered in 5.56 NATO and .223 Remington. Built for long-term reliability and durable service, it features an 8620 heat-treated bolt carrier with a QPQ black nitride finish to enhance wear and corrosion resistance, helping your rifle run smoothly under demanding use.Product Highlights Mil-Spec+ AR-15 bolt carrier group designed for dependable cycling and consistent performance 8620 heat-treated bolt carrier construction for durability under hard use QPQ black nitride finish for enhanced wear resistance and corrosion protection Compatible with 5.56 NATO and .223 Remington AR-15 builds Precision manufacturing and proven build quality from LANTACSpecs Brand Name: LanTac USA LLC Manufacturer Part Number: 01-MSPEC-556-NIT-BCG UPC: 711841794095 Platform Fit: AR-15 Caliber Compatibility: 5.56 NATO, .223 Remington Bolt Carrier Material: 8620 heat treated Finish: QPQ black nitride Country of Manufacture: USADisclaimer: 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.