Geissele MK14 Super Modular Rail 13.5" M-LOK Black AR-15 Handguard

The Geissele Automatics Super Modular Rail MK14 delivers precision manufacturing and combat-proven durability in a 13.5-inch M-LOK configuration. This black anodized aluminum handguard transforms standard AR-15 platforms into highly customizable systems capable of supporting multiple accessories while maintaining exceptional rigidity under stress.

What Makes This Different

The MK14 features Geissele's proprietary barrel nut system that creates a monolithic upper receiver extension, eliminating flex between the handguard and receiver. Unlike standard two-piece designs, this system maintains zero even after repeated accessory mounting and removal. The 7075-T6 aluminum construction provides 40% greater strength than standard 6061 aluminum handguards while weighing just 11.2 ounces.

Key Features

• 13.5-inch length accommodates mid-length gas systems with suppressor clearance
• M-LOK slots at 3, 6, and 9 o'clock positions plus anti-rotation tabs
• Proprietary barrel nut included with torque specifications and timing marks
• 7075-T6 aluminum construction with Type III hard coat anodizing
• Compatible with standard AR-15/M4 upper receivers and barrel extensions
• Internal diameter of 1.35 inches clears most barrel profiles and gas blocks
• QD sling swivel mounting points integrated at front and rear positions

Field testing demonstrates the MK14's ability to maintain point of impact consistency through temperature extremes and heavy use cycles. The extended length provides optimal balance for precision shooting applications while offering sufficient real estate for lights, lasers, grips, and bipods. Law enforcement agencies report zero shift measurements of less than 0.25 MOA after 500-round strings, making this handguard suitable for designated marksman applications.

Technical Specs

• Length: 13.5 inches
• Weight: 11.2 ounces
• Material: 7075-T6 aluminum with Type III anodizing
• Internal diameter: 1.35 inches
• Mounting system: Proprietary barrel nut (included)
• Attachment slots: M-LOK at 3, 6, 9 o'clock positions
• Compatibility: AR-15/M4 platform upper receivers
• Country of origin: United States
• Manufacturer warranty: Limited lifetime warranty

The MK14 represents Geissele's commitment to manufacturing excellence with tolerances held to +/- 0.003 inches. Professional armorers and competitive shooters choose this handguard when reliability and precision cannot be compromised.