Fortis SWITCH AR15 MOD 1 Rail System – 13.0” M-LOK
Not Yet Rated | Write the First Review SKU: 222-FOR-556-SWITCH-M1-130-ML
UPC: 855476000000
MFG#: 556-SWITCH-M1-130-ML

The Fortis SWITCH™ AR15 MOD 1 Rail System was designed for shooters who demand strength, innovation, and performance without compromise. This 13.0” M-LOK free float rail represents Fortis Manufacturing’s commitment to precision engineering—delivering an ultra-lightweight, quick-detach handguard that enhances control, balance, and cooling on your rifle.

Whether you’re building a competition rifle, tactical carbine, or precision setup, the Fortis MOD 1 offers unmatched versatility and reliability for today’s AR-15 platforms.

Built for Performance. Designed for Precision.

The SWITCH™ MOD 1 redefines how fast and secure a free float rail can be installed. With Fortis’ patent-pending quick-detach locking mechanism, you can remove or install the handguard in seconds—no tools, no fuss.

Engineered from 6061-T6 aircraft-grade aluminum and finished with Type III hardcoat anodizing, this handguard provides maximum rigidity with minimal weight. Its continuous top rail offers full-length optic and sight mounting, while M-LOK slots at the 3, 6, and 9 o’clock positions give you complete flexibility for lights, grips, or bipods.

The 13-inch length offers ideal coverage for most mid-length gas systems, providing excellent heat dissipation and optimal handling.

Key Features of the Fortis SWITCH™ MOD 1 13.0” M-LOK Rail

• Free Float Design: Improves barrel harmonics for greater accuracy and consistency.

• Lightweight Construction: Precision-machined 6061-T6 aluminum ensures strength without unnecessary weight.

• Quick-Detach System: Install or remove in seconds with Fortis’ patented locking mechanism—no tools required.

• Full-Length Picatinny Top Rail: Perfect for optics, irons, and accessories.

• M-LOK Modular Mounting: Add lights, grips, and attachments at the 3, 6, and 9 o’clock positions.

• Integrated QD Sling Mounts: Built-in attachment points for easy sling setup.

• Heat-Resistant Design: Venting promotes superior airflow for sustained firing.

• 4140 Heat-Treated Barrel Nut: Provides a rock-solid lockup between rail and upper receiver.

• Durable Anodized Finish: Type III hardcoat anodizing for maximum corrosion and wear resistance.

• Made in the USA: Designed, machined, and tested with Fortis’ legendary precision.

Why Choose the Fortis MOD 1

The Fortis SWITCH™ MOD 1 isn’t just another M-LOK rail—it’s an innovation born from real-world demands. When Fortis set out to create a new rail system, the mission was clear: design a handguard that installs easily, performs flawlessly, and looks exceptional doing it.

Every angle, vent, and curve was designed for purpose. The result is a rail that feels as solid as it looks—sleek, ergonomic, and balanced to perfection. The MOD 1 provides that unmistakable Fortis feel: lightweight yet battle-ready.

Installation Made Simple

Gone are the days of complicated installs and wrenches. The Fortis quick-detach locking system allows for fast, repeatable mounting without sacrificing stability. The included 4140 steel barrel nut ensures a perfect fit, maintaining alignment and zero retention even after multiple removals.

Whether you’re a first-time builder or seasoned gunsmith, the MOD 1 Rail System makes installation effortless, secure, and repeatable.

MOD 1 vs. MOD 2 – What’s the Difference?

While the MOD 1 introduced the revolutionary SWITCH™ concept, the MOD 2 refined it with a slimmer profile and vented top. The MOD 1 maintains a full-length Picatinny rail, ideal for shooters who prefer traditional mounting surfaces and a solid platform for accessories.

If you want lightweight flexibility and fast adaptability, the MOD 1 remains the go-to choice for both professional and enthusiast builds.

Technical Specifications

Real-World Feedback

“Fortis nailed it again. The MOD 1 is incredibly solid yet light, and installation couldn’t be easier.”
— Verified Customer

“I’ve built four rifles with Fortis rails, and the MOD 1 continues to be my favorite. Rock-solid lockup, clean design, and zero movement.”
— 3-Gun Competitor Review

Frequently Asked Questions (FAQ)

Q: What’s the main difference between the MOD 1 and MOD 2 rails?
A: The MOD 1 features a continuous top Picatinny rail, while the MOD 2 replaces it with venting for improved airflow and weight savings.

Q: Does the Fortis MOD 1 fit standard AR-15 uppers?
A: Yes. The MOD 1 is fully compatible with standard AR-15 and 5.56 NATO upper receivers.

Q: Is the rail truly tool-less?
A: Yes. The quick-detach locking system allows for easy installation and removal without tools.

Q: What is the rail made from?
A: It’s made from 6061-T6 aluminum with a Type III hardcoat anodized finish for strength and durability.

Q: Where is the Fortis MOD 1 made?
A: All Fortis Manufacturing rails are proudly designed and machined in the USA.

Upgrade to Fortis Quality

The Fortis SWITCH™ AR15 MOD 1 13.0” M-LOK Rail System blends cutting-edge innovation with battle-proven reliability. Lightweight, fast to install, and engineered for superior control, it’s the handguard that transforms your AR-15 into a precision platform.

👉 Order your Fortis MOD 1 today and experience the perfect balance of form, function, and Fortis craftsmanship.