Midwest Industries M-LOK Aluminum Top Rail for HK MP5/SP5 - Black

The Midwest Industries M-LOK Aluminum Top Rail for HK MP5/SP5 gives you a clean, modern way to mount optics and accessories on your roller-delayed blowback platform without permanent modifications. If you've got an MP5 or SP5 and want to add a red dot, magnified optic, or tactical light to your setup, this rail lets you do it while keeping your factory handguard intact—no gunsmith required.

Built from 6061 aluminum with hard coat anodizing, this top rail is engineered to stay rock-solid through years of range time and duty use. The M-LOK slot design (patent pending) gives you flexibility to attach lights, lasers, and other accessories exactly where you need them. Installation is straightforward with all necessary tools included in the box. At just 4.6 ounces, it adds minimal weight to your setup.

A few things to keep in mind: this rail is designed for 9mm MP5 and SP5 receivers. Fitment on 40 S&W or 10mm variants may require modifications. The rail is 922R compliant if that applies to your build, and it's manufactured entirely in the USA. Midwest Industries backs every rail with their lifetime warranty, so you're covered for the life of the platform.

Key Features

• M-LOK mounting interface for lights, lasers, and additional tactical accessories
• Mount an optic and a light simultaneously while retaining factory handguard
• Tool-free installation with all hardware included
• Lightweight aluminum construction (4.6 oz)
• Hard coat anodized finish for corrosion and wear resistance
• Made in the USA and 922R compliant
• Backed by Midwest Industries lifetime warranty

Specifications

Frequently Asked Questions

Will this fit my MP5 clone or only genuine HK platforms?

This rail is designed for HK MP5 and SP5 receivers. Compatibility with clones and other variants depends on their receiver dimensions and design.

Can I use this on my 40 S&W or 10mm MP5?

The rail is designed for 9mm receivers. There may be fitment issues with 40 S&W and 10mm variants, and those builds may require modification or professional fitting.

What tools do I need to install this rail?

All necessary tools are included with the rail. No gunsmith or special equipment is required for installation.

Can I mount both an optic and a light with this rail?

Yes. The rail's design allows you to mount an optic and a light or laser simultaneously while keeping your factory handguard in place.