The KDG HK 556 M-Lok rails are direct mount rail system, replacing the factory HK 556 rail systems. These rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like the 762 version, these rails are lighter, longer, and more ergonomic for the operator.
The KDG HK 556s M-Lok rails come in two lengths: 10” and 13.75”. They feature a continuous monolithic picatinny rail at the 12 o’clock position, and M-Lok mounting slots at the 3, 6 and 9 o’clock positions. The systems also uniquely offers a forward mounting M-Lok slot at each of the 2, 4, 8, and 10 o’clock positions for offset accessories like lights and lasers. They also include two quick-detach sling attachment points on either side of the rail system for use with modern two-point adjustable slings. The KDG HK 556 rails will be available in black and brown type 3 hard coat anodizing.
The systems are optimized for all standard M-Lok mounted accessories, or could be used in combination with the KDG Kinect M-Lok quick attach/detach accessory mounts. The KDG HK 556 M-Lok rail is compatible with Heckler and Koch 416 variants including: 416, MR 556, and M27.
*** KDG DOES NOT WARRANT VARIANCE IN THE BROWN ANODIZED COLORS***
Overall length: 9.57″
Material – 6061-T6 Aluminum
Finish – Type 3 Hard-coat Anodized Black
Weight: 10.2 ounces