Product DescriptionUpgrade your AR-15/M4 from a front sight base and drop-in handguard to a free-float setup with the Battle Arms Development WORKHORSE 15-inch rail and .750 low-profile gas block upgrade kit. This kit is designed to provide a lightweight, rigid handguard platform for modern accessories while helping keep the barrel free from external contact for consistent performance. Finished in black anodizing, it includes the WORKHORSE free-float rail, a .750 gas block, and a barrel nut for installation.Product HighlightsWORKHORSE 15-inch free-float handguard upgrade for AR-15/M4 platformsIncludes a WORKHORSE .750 low-profile gas block for a streamlined buildM-LOK mounting system for flexible accessory placementBlack anodized finish for durability and corrosion resistanceMade in the USA; barrel nut included for installationSpecsBrand: Battle Arms DevelopmentManufacturer Part Number: WH-UR-UPGUPC: 810033785795Handguard Length: 15 inHandguard Inside Diameter: 1.36 inMounting System: M-LOKMaterial: 6061-T6 AluminumFinish/Color: Black anodized (Type 3 hardcoat anodize noted by distributor)Gas Block Size: .750Included Components: WORKHORSE free-float rail, WORKHORSE .750 low-profile gas block, barrel nutCountry 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.