Geissele Super Modular Rail Mk4 DDC 10.5" M-LOK Handguard

The Geissele Super Modular Rail Mk4 DDC delivers precision manufacturing and enhanced modularity for AR-15 platforms. This 10.5-inch handguard combines lightweight construction with exceptional rigidity, providing a stable mounting platform for optics and accessories while maintaining the rifle's balance point.

What Makes This Different

Geissele's proprietary DDC (Desert Dirt Color) coating offers superior corrosion resistance compared to standard anodizing processes. The rail features continuous Picatinny top rail with M-LOK attachment points at 3, 6, and 9 o'clock positions. Internal geometry maximizes strength while reducing weight by 20% over comparable quad-rail systems. The barrel nut design provides enhanced torque specifications for consistent installation.

Key Features

• 10.5-inch length optimized for carbine and SBR configurations
• 6061-T6 aluminum construction with Type III hard anodized finish
• M-LOK compatible slots for streamlined accessory mounting
• Continuous Picatinny top rail for optics and backup sights
• Anti-rotation tabs prevent handguard movement under stress
• Internal cable management channels for clean wire routing
• Compatible with standard AR-15 upper receivers and gas systems

Field testing demonstrates consistent zero retention through temperature extremes and heavy use cycles. The rail maintains structural integrity under rapid fire schedules while dissipating heat effectively. Law enforcement and competitive shooters report improved accuracy potential due to reduced harmonic interference. The DDC finish resists wear from slings, bipods, and environmental exposure.

Technical Specs

• Length: 10.50 inches
• Weight: 11.2 ounces
• Material: 6061-T6 aluminum alloy
• Finish: DDC (Desert Dirt Color) Type III hard anodized
• Mounting: Proprietary barrel nut system
• Attachment: M-LOK slots at 3, 6, and 9 o'clock positions
• Top rail: Continuous 1913 Picatinny specification
• Compatibility: AR-15 platform, carbine and mid-length gas systems
• Manufactured: United States

This handguard represents proven engineering from a manufacturer trusted by military and law enforcement agencies worldwide. The combination of weight reduction, mounting flexibility, and durability makes it suitable for demanding applications where equipment failure is not acceptable.