Geissele Automatics MK16 SMR Super Modular Rail 10.5" M-LOK – Black

Duty-Proven Strength. Precision Engineered.

The Geissele Automatics MK16 Super Modular Rail is one of the most respected free-float handguards on the AR platform. Built for hard use and trusted by professional end users, the 10.5-inch MK16 delivers exceptional rigidity, lightweight construction, and rock-solid accessory mounting in a compact package.

Machined from 7000 Series aluminum and finished with a durable Type III Hardcoat Anodized coating, the MK16 is engineered to withstand demanding conditions while maintaining a lightweight profile. Geissele's proven barrel nut system, anti-rotation tabs, and locking set screws ensure the rail remains securely mounted, even under heavy use. The MK16 rail family has also been adopted by USASOC as part of the URG-I program.

Whether you're building a duty rifle, defensive carbine, or premium AR-15, the MK16 offers the strength, modularity, and reliability serious shooters demand.

Features

• 10.5" free-float M-LOK handguard
• Lightweight yet extremely rigid 7000 Series aluminum construction
• Mil-Spec Type III Hardcoat Anodized black finish
• Full-length M1913 Picatinny top rail
• M-LOK attachment slots on all four sides
• Anti-rotation tabs and locking set screws
• Proven Geissele barrel nut mounting system
• Precision machined for maximum durability
• Made in the USA

Specifications

• Length: 10.5"
• Material: 7000 Series Aluminum
• Finish: Type III Hardcoat Anodized (Black)
• Weight: 11 oz. (12.6 oz. with barrel nut)
• Inner Diameter: 1.26"
• Outer Diameter: 1.59"
• Attachment System: M-LOK
• Top Rail: M1913 Picatinny
• Platform: AR-15

Why Choose the MK16?

The MK16 was designed to provide maximum rigidity while keeping weight to a minimum. Its slim profile offers excellent ergonomics, while the full-length Picatinny rail and M-LOK slots provide nearly unlimited accessory mounting options.

Perfect for:

• Duty carbines
• Defensive AR-15 builds
• SBRs and pistols
• Competition rifles
• Professional and recreational shooters

Compatibility

Compatible with Mil-Spec AR-15 upper receivers.

Note: Compatibility with billet upper receivers may vary. If this is your first Geissele rail, a Geissele Barrel Nut Wrench is required for installation.

Shipping Information

As a small business committed to maintaining operational efficiency and cost-effectiveness, Ocean State Armory operates on a just-in-time inventory model rather than stocking every product in-house.

Please allow 5–7 business days for order processing before shipment.

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