Geissele 10.5" HK416 M-LOK Desert Dirt Color™ Super Modular Rail 05‑854S is a precision-crafted free-float handguard designed for HK416 and MR556-pattern rifles, offering rugged modularity in a compact profile. Featuring a lightweight 10.5″ length and full-length Picatinny top rail paired with M-LOK slots at 3, 6, and 9 o’clock, this rail allows for flexible accessory mounting while optimizing ergonomics. Machined from aircraft-grade aluminum and finished in Desert Dirt Color™ hardcoat anodizing, it ensures durability, corrosion resistance, and tactical styling for demanding environments.

• Material: Aircraft-grade 6061‑T6 aluminum
• Finish: Desert Dirt Color™ (DDC), Type III hardcoat anodized
• Length: 10.5″ free-float design (~9⅜″ real rail length)
• Rails: Full-length Picatinny top; M-LOK slots at 3, 6, 9 o’clock
• Mounting System: Torque-free hinge clamp with anti-rotation tabs and set screws
• Weight: Approximately 12–14 oz unloaded
• Compatibility: HK416/MR556 platform uppers
• Part Number: 05‑854S