Knights Armament Company URX 4 M-LOK 13" 5.56 Rail

The Knights Armament Company URX 4 for AR-15s in 5.56mm is a free floating continuous top-rail handguard system that utilizes the M-LOK mounting brackets developed by Magpul. The modular M-LOK system allows the shooter to customize the location of accessories such as lasers, lights and grips.

Includes:

• URX 4 13" rail M-LOK
  
• Knight's Integrated Barrel Nut (IBN)
  
• Shim set and wrench