Product Description The Primary Weapons Systems (PWS) MK216 Upper Receiver is a premium AR10/SR25-compatible upper assembly chambered in .308 Winchester (7.62x51mm NATO). Engineered for reliability and precision, this upper features a 16.1" barrel paired with PWS&';s proprietary FRC Comp muzzle device, which is purpose-built to reduce felt recoil and muzzle rise for faster and more accurate follow-up shots. Finished in a durable matte black coating, the MK216 upper is designed to drop onto any standard AR10/SR25 lower receiver, making it a versatile solution for hunters, competitive shooters, and tactical operators who demand a high-performance .308 platform. Product Highlights AR10/SR25 Compatible: Drops onto any standard AR10/SR25 lower receiver for broad platform versatility. 16.1" Barrel in .308 Winchester: Provides an optimal balance of velocity, accuracy, and maneuverability for a .308 Win / 7.62x51mm NATO platform. PWS FRC Comp Muzzle Device: Proprietary Full-Range Comp design reduces recoil and muzzle climb, enabling faster and more accurate follow-up shots. Durable Matte Black Finish: Hard-wearing matte coating offers excellent corrosion resistance and a low-glare tactical appearance. Premium PWS Construction: Built by Primary Weapons Systems, a trusted leader in AR-platform firearms known for tight tolerances and exceptional quality control. Specs Brand: Primary Weapons Systems Model: MK216 Type: Upper Receiver Assembly Compatibility: AR10 / SR25 Caliber: .308 Winchester / 7.62x51mm NATO Barrel Length: 16.1" Muzzle Device: FRC Comp Finish: Matte Color: Black UPC: 811154033413 MPN: MK2-M2U-308-16 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. ]]>