Product Description The Daniel Defense Rail Interface System II (RIS II) M4A1 handguard was designed at the request of United States Special Operations Command (SOCOM) for the SOPMOD II program. This 2-piece, free-floating style handguard is built from 6061-T6 aluminum and finished in Flat Dark Earth anodizing. It features an uninterrupted Picatinny rail platform for secure mounting of lights, grips, optics accessories, and other Mil-Std 1913 compatible attachments. The RIS II design also supports free-floating the M203 grenade launcher without additional parts, helping deliver a robust and mission-proven setup for AR-15 platforms. Product Highlights SOCOM-requested RIS II design developed for the SOPMOD II program Free-floating handguard system designed to help maximize accuracy potential 2-piece configuration supports M203 compatibility without additional parts 6061-T6 aluminum construction with Flat Dark Earth anodized finish Picatinny (Mil-Std 1913) rail surfaces for versatile accessory mounting Specs Brand: Daniel Defense Manufacturer Part Number: 0100408001 UPC: 852548002820 Product Type: Handguard / Forend Series: RIS II (M4A1) Platform Fit: AR-15 Overall Length: 12.25 in Configuration: 2-piece Design: Free-floating style Material: 6061-T6 aluminum Finish/Color: Flat Dark Earth anodized Rail Type: Picatinny (Mil-Std 1913) 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.