The Strike Industries GridLok-416-FD-11 Full Duty Rail is a purpose-built free float handguard for HK 416, HK MR556, and M27 IAR platforms. Machined from durable 6061-T6 aluminum with a black finish, it mounts directly to the factory HK OEM barrel nut and incorporates Strike’s patent-pending Quick Rail Detach GridLok locking latch for rapid handguard swaps. Generous M-LOK slots along the 3, 6, and 9 o’clock positions and an integrated flip-up front backup iron sight make this 11-inch rail a versatile upgrade for modern HK-based builds.

This model is ideal for shooters who want a configurable, modular front end that supports lights, grips, and other accessories while maintaining a slim 1.57-inch diameter compatible with many suppressors. The single-piece design keeps weight down without sacrificing strength, and the rear 360-degree QD sockets provide flexible sling mounting options. Whether you are setting up a rifle for training, range use, or general-purpose duty, the GridLok-416-FD-11 reflects Strike’s focus on thoughtful engineering and practical innovation.

• Manufacturer: Strike
• Model: GridLok-416-FD-11 Full Duty Rail
• Material: 6061-T6 Aluminum
• Color: Black
• Length: 11"
• Diameter: 1.57"
• Mount Type: M-LOK