Product DescriptionThe NCStar MAR4S quad rail handguard is a carbine-length AR-15 drop-in rail system designed to replace standard handguards in minutes with no gunsmithing or permanent modifications required. Built from hardcoat anodized aluminum for corrosion resistance and long-lasting durability, this solid quad-rail platform provides multiple mounting surfaces for lights, lasers, vertical grips, bipods, and other rail-mounted accessories. Large ventilation cutouts help promote airflow around the barrel, while engraved rail markings aid consistent accessory placement.Product Highlights Drop-in AR-15 carbine-length quad rail handguard that installs quickly without gunsmithing Hardcoat anodized aluminum construction for lightweight strength and corrosion resistance Solid quad-rail design provides a stable mounting platform for optics and accessories Ventilation openings help improve airflow to keep the barrel cooler during use Laser-engraved rail index markings for repeatable accessory positioningSpecs Brand: NCStar Manufacturer Part Number: MAR4S UPC: 814108011802 Product Type: Quad rail handguard Compatibility: AR-15 / .223 Remington / 5.56 NATO carbine-length gas systems; uses GI handguard cap and delta ring Rail Type: Weaver/Picatinny-style quad rail Number of Rail Positions: 4 Material: Aluminum Finish/Color: Black anodized (hardcoat anodized) Overall Length: 6.7 in (rail length listed as 6.5 in) Width: 2.3 in Height: 2.3 in Weight: 9.9 ozDisclaimer: 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.