Rail System – 10″ – Black – M-Lok – HK MR556


Rail System – 10″ – Black – M-Lok – HK MR556

The New KDG HK 556 M-Lok rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like the 762 version, these new rails are lighter, longer, and more ergonomic for the operator.

It features 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.This 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 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.



Overall length: 9.57″

Material – 6061-T6 Aluminum

Finish – Type 3 Hard-coat Anodized Black

Weight: 10.2 ounces



  • Condition: New
  • Color: Black
  • Brand: Kinetic Development Group

In stock

SKU: HKP-19246

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