Product DescriptionThe Geissele Super Modular Rail (SMR) MK16 is a rugged, precision-machined AR-15 handguard designed for shooters who demand maximum rigidity and repeatable performance. It mounts to your upper receiver using an updated version of Geissele's proven barrel nut design for straightforward installation and maintenance. Anti-rotation tabs and set-screws help prevent movement under hard use, while the top M1913 Picatinny rail and M-LOK slots on every quadrant provide ample space for lights, grips, sling mounts, and other accessories. Machined from strong yet lightweight 7000 Series aluminum and finished with durable Type 3 hardcoat anodizing in Geissele Desert Dirt Color (DDC), this rail is built for long-term durability-note that DDC shades may vary between parts and from product photos.Product HighlightsUpdated Geissele barrel nut mounting system for secure fit and easier installation/maintenanceAnti-rotation tabs and set-screws help keep the rail from rotating under extreme useFull-length M1913 Picatinny top rail for optics, irons, and clip-on accessoriesM-LOK mounting slots on every quadrant for highly modular accessory placement7000 Series aluminum construction with Type 3 hardcoat anodized Desert Dirt Color (DDC) finishSpecsBrand: Geissele AutomaticsModel: Super Modular Rail (SMR) MK16Length: 13.5 inAttachment Interface: M-LOKTop Rail: M1913 PicatinnyMaterial: 7000 Series aluminumFinish: Type 3 hardcoat anodized, Desert Dirt Color (DDC)Weight: 13.4 oz (14.9 oz with barrel nut)Height: 2.39 inManufacturer Part Number: 05-650SUPC: 817953027141Disclaimer: 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.