Geissele Automatics MK16 SMR Super Modular Rail 15" M-LOK – Black

Maximum Coverage. Uncompromising Strength.

The Geissele Automatics MK16 Super Modular Rail is a premium free-float handguard engineered for shooters who demand exceptional rigidity, lightweight performance, and rock-solid reliability. Trusted by military professionals and adopted as part of the USASOC URG-I program, the 15-inch MK16 provides maximum handguard coverage for full-length rifles while maintaining Geissele's legendary durability.

Precision machined from 7000 Series aluminum and finished with a Type III Hardcoat Anodized black finish, the MK16 is built to withstand hard use in the harshest environments. Its proprietary barrel nut system, anti-rotation tabs, and locking hardware create an exceptionally rigid interface between the upper receiver and handguard, ensuring your accessories remain securely mounted.

Whether you're building a precision rifle, duty carbine, competition AR, or suppressed 16-inch rifle, the MK16 delivers the strength, modularity, and performance serious shooters expect.

Features

• 15" free-float M-LOK handguard
• Lightweight, rigid 7000 Series aluminum construction
• 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
• Geissele proprietary barrel nut system
• Slim ergonomic profile for improved handling
• Made in the USA

Specifications

• Length: 15"
• Material: 7000 Series Aluminum
• Finish: Type III Hardcoat Anodized (Black)
• Weight: 15.6 oz. (17.1 oz. with barrel nut)
• Inner Diameter: 1.26"
• Outer Diameter: 1.59"
• Attachment System: M-LOK
• Top Rail: Full-Length M1913 Picatinny
• Platform: AR-15

Why Choose the MK16?

The 15-inch MK16 offers the longest accessory mounting surface in the MK16 lineup, giving shooters maximum flexibility for weapon lights, lasers, bipods, foregrips, and sling attachments. Its free-float design helps maximize barrel accuracy while maintaining a lightweight, balanced rifle.

Ideal for:

• Duty rifles
• Defensive carbines
• Precision AR-15 builds
• Competition rifles
• Suppressed rifles
• 16" and longer barrel configurations

Compatibility

Compatible with Mil-Spec AR-15 upper receivers.

Note: Compatibility with billet upper receivers may vary. A Geissele Barrel Nut Wrench is required if this is your first Geissele rail 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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