Licensed by Strike Industries, Madbull proudly present the Crux Handguard M-lok rail. It is a ultra-light weight M-LOK rail for the MR556 and HK416.Weighing in at a fraction of the original rail. The CRUX handguard features M-LOK sessions at the 3, 6, and 9 o'clock positions with front flip-up sight. If you're the person that lives by the saying ounces equals pounds and pounds equal pain this is the rail for you.
• Ultra light weight
• Key Mod slots at 3, 6, and 9 o'clock
• No Specialized Tools Required for Installation
• Mil Spec Picatinny Continuous top rail
• Integrated profile flip-up front sights