Product DescriptionThe Geissele Automatics Super Modular Rail (SMR) HK416 MK15 M-LOK is engineered to replace the standard rail on HK416 and MR556 weapon platforms. This rugged rail system utilizes the stock HK barrel nut while delivering the strength, rigidity, and modularity Geissele is known for. Built from 6061-T6 aluminum and finished with a Type 3 hardcoat anodize, the SMR HK416 MK15 is designed to meet military specifications and provide a durable, lightweight mounting solution for accessories.Product Highlights Purpose-built replacement rail for HK416 and MR556 platforms M-LOK compatible modular design for flexible accessory mounting Uses the factory HK barrel nut for straightforward platform integration 6061-T6 aluminum construction for an excellent balance of strength and weight Type 3 hardcoat anodized finish designed to meet military specification expectationsSpecs Brand: Geissele Automatics Manufacturer Part Number: 05827S UPC: 817953029404 Model/Series: Super Modular Rail (SMR) HK416 MK15 Interface: M-LOK Material: 6061-T6 Aluminum Finish: Type 3 Hardcoat Anodized Overall Length: 10.50 in Compatibility: HK416 / MR556 (uses stock HK barrel nut)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 products manufacturer.