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

The Geissele Super Modular Rail MK15 delivers precision-grade aluminum construction with M-LOK compatibility for serious AR-15 builds. This 10.5-inch handguard combines lightweight design with exceptional rigidity for enhanced accuracy and accessory mounting flexibility.

What Makes This Different

The MK15 features Geissele's proprietary barrel nut system that creates a monolithic upper receiver extension, eliminating flex under stress. Unlike standard two-piece designs, this system maintains zero shift during rapid fire sequences. The 7075-T6 aluminum construction weighs 30% less than comparable steel rails while maintaining superior strength ratings.

Key Features

• 7075-T6 aluminum construction with Type III hard coat anodizing
• M-LOK slots at 3, 6, and 9 o'clock positions for accessory mounting
• Proprietary barrel nut system eliminates upper receiver flex
• 10.5-inch length accommodates carbine gas systems perfectly
• Continuous top rail maintains sight plane alignment
• Anti-rotation tabs prevent handguard movement under stress
• Compatible with low-profile gas blocks and standard AR-15 uppers

Field testing demonstrates consistent POI maintenance through extended firing sessions, with thermal expansion characteristics that won't affect zero retention. The M-LOK interface accepts standard accessories without additional hardware, while the slim profile allows comfortable grip positions for both precision shooting and close-quarters applications. Weather resistance testing shows no corrosion after 500-hour salt spray exposure.

Technical Specs

• Length: 10.50 inches
• Weight: 11.2 ounces
• Material: 7075-T6 aluminum
• Finish: Type III hard coat anodize, black
• Mounting: Proprietary barrel nut system
• Compatibility: AR-15 platform, carbine gas systems
• Rail sections: Continuous 12 o'clock Picatinny
• Made in USA with lifetime warranty

Professional armorers and competitive shooters choose Geissele components for their proven reliability under demanding conditions. The MK15 represents the intersection of weight savings and structural integrity that serious applications require.