The super modular rail HK416 M-LOK is a cutting-edge upgrade designed specifically for the HK416 and MR556 weapon platforms, offering a superior alternative to the standard rail. This advanced rail system seamlessly integrates with the existing HK barrel nut, ensuring a robust and reliable connection. Crafted from high-grade 6061-T6 aluminum and finished with a type 3 hardcoat anodize, it meets stringent military specifications for durability and performance. Engineered with the needs of elite warfighters in mind, the SMR HK416 M-LOK provides unparalleled strength, rigidity and modularity, hallmarks of Geissele's renowned craftsmanship. The rail features versatile M-LOK bipoding slots at the 3, 6 and 9 O'clock positions along its entire length, allowing for extensive customization and accessory attachment. Additionally, a full-length picatinny rail on top offers further adaptability for optics and other tactical enhancements. The SMR HK416 M-LOK is not just a rail - it's a comprehensive enhancement to your weapon system, trusted by the nation's most elite forces. Its design reflects direct input from these professionals, ensuring that it meets the highest standards of functionality and performance in the field. Whether for military, law enforcement or civilian use, this rail system elevates your firearm to new levels of capability and reliability.M-LOK mounting points are positioned at the 3, 6 and 9 o'clock orientations12 o'clock picatinny rail