Geissele Automatics 14.5'' Hk416 Mk15 Super Modular Rail Smr M-Lok Black

The Geissele Automatics 14.5'' HK416 MK15 Super Modular Rail is a free-floating M-LOK handguard built for shooters who demand precision and durability. Engineered specifically for HK416-platform rifles, this SMR combines Geissele's proven design philosophy with genuine modularity—offering a clean, lightweight platform that works with your existing HK barrel nut and doesn't require proprietary tools or fitment headaches. Whether you're running a duty rifle, precision carbine, or a purpose-built competition gun, the MK15 delivers the rigidity and mounting flexibility serious shooters expect from the brand.

Constructed from 6061-T6 aluminum and finished in type 3 hardcoat anodize, the rail meets military specifications for durability and corrosion resistance. At 10.3 ounces and sized for the 14.5'' barrel profile, it balances mass and strength without unnecessary bulk. The design incorporates a full-length top picatinny rail for optics and accessories, with abbreviated picatinny rails on the forend. M-LOK slots at the 3, 6, and 9 o'clock positions give you multiple ways to mount lights, grips, sling attachments, and other gear without rail clutter.

Installation uses the standard HK barrel nut—no specialized components required. The 1.35'' inner diameter and 2.08'' outer diameter (measured at the nut) fit HK416-pattern upper receivers. If you're familiar with HK's ergonomics and want to keep setup straightforward, the Geissele SMR HK416 MK15 does the job cleanly and quietly.

Key Features

• Fits HK416-pattern rifles; uses standard HK barrel nut
• Full-length top picatinny rail for optics and forward accessories
• M-LOK mounting at 3, 6, and 9 o'clock for lights and grips
• Forend includes abbreviated picatinny sections for additional mounting
• 6061-T6 aluminum with type 3 hardcoat anodize finish
• Lightweight at 10.3 ounces for the 14.5'' length
• Meets military specifications for strength and corrosion resistance

Specifications

Frequently Asked Questions

Will this fit my HK416 or HK416-pattern rifle?

Yes. The Geissele SMR MK15 is designed for HK416-platform uppers and uses the standard HK barrel nut, so installation is straightforward on compatible receivers.

What mounting options do I have for accessories?

The rail features a full-length picatinny rail on top for optics and other accessories, shortened picatinny sections on the forend, and M-LOK slots at 3, 6, and 9 o'clock positions for lights, grips, and sling attachments.

Do I need special tools or a proprietary barrel nut?

No. The MK15 works with the standard HK416 barrel nut, so you don't need Geissele-specific components or proprietary installation hardware.

How much does this handguard weigh?

The 14.5'' model weighs 10.3 ounces, keeping your rifle balanced and manageable without unnecessary mass.