Product DescriptionThe Noveske Bolt Assembly is engineered for 6mm ARC and 6.5 Grendel platforms, with additional compatibility for the 22 ARC cartridge. Built from high-quality SAE 9310 steel and heat treated for strength and durability, this bolt is designed to deliver reliable performance in demanding AR-15 applications. A DLC-coated finish enhances surface hardness and lubrication, helping reduce friction and promote smoother operation. With improved lug geometry and tightly controlled ejector dimensions, this bolt assembly is designed for dependable lockup, clean cycling, and seamless integration with a full range of Mil-spec sub-components.Product Highlights Designed for 6mm ARC and 6.5 Grendel rifles, and also works with 22 ARC cartridges Constructed from heat-treated SAE 9310 steel for strength, durability, and long service life DLC-coated finish provides enhanced surface hardness and improved lubrication characteristics Improved lug geometry promotes smoother locking and consistent bolt engagement Tightly controlled ejector dimensions help minimize extrusions for reliable performance Specs Product Type: Bolt Assembly Compatible Calibers: 6mm ARC, 6.5 Grendel, 22 ARC Platform Compatibility: AR-15 Material: SAE 9310 Steel Heat Treated: Yes Finish: DLC Coated Color: Black Mil-spec Component Compatibility: Yes Manufacturer Part Number: 05002852 UPC: 840906138953 Brand: Noveske Disclaimer: 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.