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

The Geissele Automatics 14.5" HK416 Super Modular Rail (SMR) is a precision-engineered handguard built for shooters who demand real modularity and rock-solid mounting on HK platform rifles. This M-LOK-equipped rail system works with your factory HK barrel nut, eliminating the need for proprietary installation headaches while delivering the strength and rigidity Geissele is known for in combat and competitive environments.

Built from 6061-T6 aluminum and finished in Type 3 hardcoat anodize, the SMR HK416 meets military specifications for durability and corrosion resistance. The 14.5" length splits the difference between maneuverability and sight radius, making it a natural fit for intermediate-range setups, short-barreled builds, and shooters who want genuine flexibility in how they mount optics, lights, and other accessories without overcomplicating the profile.

The mounting options reflect real-world use: full-length Picatinny rail on top for optics and backup sights, shortened Picatinny sections on the forend for co-witnessing, and M-LOK slots at 3, 6, and 9 o'clock for lightweight mounting of vertical grips, hand stops, and tactical lights. At 10.3 ounces, it won't bloat your rifle's weight budget, and the 1.35" inner diameter fits HK416 profile barrels as designed.

If you're running an HK platform rifle and tired of the factory rail or looking to upgrade a build, the Geissele SMR HK416 delivers the modularity and precision machining that makes maintenance, accessory swaps, and optics changes quick and confidence-inspiring.

Key Features

• Compatible with factory HK barrel nut—no proprietary tools or migration required
• Full Picatinny rail on top, shortened sections on forend for flexible optics and accessory mounting
• M-LOK slots at 3, 6, and 9 o'clock for lightweight tactical light and grip options
• 6061-T6 aluminum construction with Type 3 hardcoat anodize finish meets military specifications
• Lightweight at 10.3 ounces—doesn't sacrifice rigidity for weight savings
• 14.5" length optimizes sight radius while maintaining compact profile

Specifications

Frequently Asked Questions

Will this rail fit my HK416 or HK clone?

Yes, the SMR HK416 works with your factory HK barrel nut, so installation is straightforward on any HK-pattern rifle. It's designed specifically for HK platform barrels with the 1.35" inner diameter and HK barrel nut interface.

Can I mount an optic and backup sights on this rail?

Absolutely. The full-length Picatinny rail on top accommodates any optic mount, and the shortened Picatinny sections forward of the receiver allow co-witnessed backup irons or canted accessories.

What mounting options are available for lights and grips?

The rail features M-LOK slots at 3, 6, and 9 o'clock positions, so you can attach M-LOK-compatible tactical lights, vertical grips, hand stops, and other accessories without adding a lot of weight or complexity.

How much does this handguard weigh?

The 14.5" SMR HK416 weighs 10.3 ounces, keeping your rifle lightweight without compromising rigidity or strength.