Product DescriptionThe KAK Industry AR-15 bolt carrier group (BCG) features an M16 auto profile carrier and an advanced NP3 coating designed to reduce friction and improve resistance to corrosion and fouling. NP3 is applied via an electroless nickel plating process combined with a fluoropolymer, helping promote smoother cycling and easier cleaning in demanding use. This BCG is built with a 9310 bolt, NP3 cam pin, and a 4130 gas key for a durable, performance-focused upgrade or replacement.Product HighlightsNP3 electroless nickel + fluoropolymer coating helps reduce friction for smoother operationM16 auto profile carrier design for AR-15 platforms9310 steel bolt for strength and reliabilityIncludes NP3-coated cam pin for enhanced wear resistance4130 gas key for robust, long-term performanceSpecsBrand: KAK IndustryProduct Type: Bolt Carrier Group (BCG)Platform: AR-15Carrier Profile: M16 Auto ProfileBolt Material: 9310 steelGas Key Material: 4130Cam Pin: NP3Finish/Coating: NP3UPC: 811163035675Manufacturer Part Number: 425-0506-001Disclaimer: 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.