Geissele Automatics Super Modular Rail MK15 M-LOK 10.5" Handguard - Black

The Geissele Automatics Super Modular Rail MK15 is a 10.5" free-float handguard purpose-built to replace the factory rail on the HK416 and MR556 weapon platforms. Engineered to military specifications, this M-LOK rail delivers a rigid, lightweight optic-mounting solution for short-barrel carbines.

CNC-machined from 6061-T6 aircraft-grade aluminum and finished in Type III hardcoat anodized matte black, the MK15 is built to hold up under hard use without weighing the host carbine down. M-LOK mounting slots are placed at the 3, 6, and 9 o'clock positions for lights, lasers, vertical grips, and other accessories, while a continuous 12 o'clock Picatinny rail provides an uninterrupted mounting surface for red dots, low-power variables, and back-up iron sights.

The free-float design eliminates contact between the rail and the barrel, supporting consistent harmonics and repeatable accuracy. At 10.5" in length, the Super Modular Rail MK15 is an ideal match for compact 10.5"-barrel HK416 and MR556 carbines, offering a sleek, snag-resistant top rail with a continuous Picatinny mounting surface ready for modern optics and standard iron sights alike.