The Super Modular Rail (SMR) MK8 stands as one of the first handguards to incorporate Magpul's M-LOK technology. This ultra-modular 15" design combines structural strength with advanced cooling through maximum venting at the lower 45° quadrants.
Highlights:
Extended barrel nut design → Enhanced zero retention through maintenance cycles
Strategic 45° venting → Superior heat dissipation without compromising strength
Full M-LOK compatibility → Extensive accessory mounting at 3, 6, 9 o'clock and 45° positions
Full-length top rail → Continuous MIL-STD-1913 mounting surface
Lightweight design → Optimized balance of strength and weight reduction
The MK8 features Geissele's proprietary barrel nut system, increasing surface contact at the receiver interface. This enhanced mounting platform maintains alignment during maintenance cycles. The rail's strategically placed venting reduces overall weight while the M-LOK slots provide extensive mounting options.
Technical Specifications:
Length: 15 inches
Height: 2.3 inches
Inner Diameter: 1.35 inches
Outer Diameter (DAQ): 2.11 inches
Weight: 12.4 oz (14.3 oz with barrel nut)
Finish: Type-3 Hardcoat Anodize
Mounting: M-LOK compatible
Top Rail: Full-length M1913 Picatinny
*Note: Barrel nut wrench sold separately. Gas block not included.
