Super modular rail HK416 M-LOK The super modular rail HK416 M-LOK is a cutting-edge upgrade designed to elevate the performance and versatility of the HK416 and MR556 weapon platforms. Engineered to seamlessly replace the standard rail, this advanced system leverages the original HK barrel nut while delivering the unparalleled strength, rigidity and modularity synonymous with Geissele craftsmanship. Constructed from high-grade 6061-T6 aluminum, the SMR HK416 M-LOK is finished with a type 3 hardcoat anodize, ensuring it meets stringent military specifications for durability and resilience in the most demanding environments. This rail system is not only robust but also highly adaptable, featuring M-LOK bipoding slots at the 3, 6 and 9 O'clock positions along its entire length, providing extensive customization options for tactical accessories. Additionally, a full-length picatinny rail crowns the top, offering a solid platform for optics and other attachments. The development of the SMR HK416 M-LOK was heavily influenced by feedback from our Nation's elite warfighters, ensuring that it meets the highest standards of performance and functionality. This collaboration has resulted in a handguard that is not only feature-rich but also battle-proven, trusted by those who demand the best in their field operations. Whether you are a professional in the field or an enthusiast seeking to enhance your weapon's capabilities, the super modular rail HK416 M-LOK is the definitive choice for superior performance and adaptability. M-LOK mounting points are positioned at the 3, 6 and 9 o'clock orientations 12 o'clock picatinny rail