Geissele Automatics Super MOD MK4 Federal Desert Tan 10″ M-LOK for AR15

Geissele Super Modular MK4 Features

The MK4’s robust design includes integrated 1913 Picatinny rail sections at the 3, 6, and 9 o’clock positions near the front of the handguard, with an extended Picatinny section along the 6 o’clock position to accommodate vertical grips, lights, and bipods more comfortably. This version emphasizes maximum venting, reducing overall weight and improving airflow for effective heat management during sustained fire.

The handguard features M-LOK slots at the 3, 6, and 9 o’clock positions, along with the upper 45-degree quadrants, allowing users to configure attachments exactly where needed without unnecessary bulk. This modular approach preserves agility while offering unmatched flexibility for tactical accessories, sling mounts, and rail covers.

Geissele Super Modular MK4 Specifications

• Manufacturer: Geissele Automatics
• Model: Super Modular Rail MK4 Federal
• Rail Length: 10 inches
• Rail Type: M-LOK
• Color: Federal Desert Tan
• Compatibility: AR-15 / M4 platforms
• Mounting Interface: Geissele Proprietary Barrel Nut and Fasteners
• Integrated Rails: 1913 Picatinny at Fore 3, 6, and 9 o’clock Positions
• Additional Picatinny: Extended Bottom Rail at 6 o’clock
• M-LOK Placement: 3, 6, 9 o’clock and Upper 45-Degree Quadrants
• Ventilation: Maximum Venting for Weight Reduction and Heat Dissipation
• Construction: Aircraft-Grade Aluminum
• Finish: Type III Hardcoat Anodized
• Purpose: Lightweight, Rigid, Modular Rail System for Tactical and Sporting Use