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Fortis Rails | AR-15 M-LOK REV II & Night Rail Free Float Handguards
The Fortis AR-15 Rail lineup represents the perfect blend of engineering precision, lightweight design, and performance-driven innovation. Whether you’re building a tactical rifle, upgrading an existing AR, or optimizing for competition, Fortis rails are designed to enhance both function and form.
Crafted from aerospace-grade 6061-T6 aluminum, each Fortis handguard is machined for maximum rigidity without unnecessary weight. The result is a rail system that’s durable, sleek, and easy to install — all while improving your rifle’s handling and balance.
Mounts Plus proudly carries the complete collection of Fortis REV II and Fortis Night Rail systems, available in multiple lengths to fit your build perfectly.
Why Choose Fortis Rails for Your AR-15
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Ultra-Lightweight Design: The Fortis rail system provides unmatched weight savings without compromising strength or stability.
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True Free-Float Performance: Improves accuracy and eliminates barrel contact points for consistent shooting precision.
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M-LOK Mounting System: Attach accessories directly where you need them — at the 3, 6, and 9 o’clock positions.
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Quick & Simple Installation: All Fortis rails use a standard barrel nut, requiring no proprietary tools or special modifications.
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Premium Finish: Hardcoat Type III anodized in matte black for superior corrosion resistance and a clean, tactical look.
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Engineered for Endurance: Each rail undergoes rigorous testing to meet the demands of law enforcement, competitive shooters, and serious enthusiasts.
When you choose Fortis, you’re not just upgrading a part — you’re investing in a rail system designed for precision, reliability, and long-term performance.
Explore Fortis Rail Models Available at Mounts Plus
| Model | Length | Type | Mount System | Finish | Ideal For |
|---|---|---|---|---|---|
| Fortis REV II Rail | 12.4”, 13.8”, 15” | Free Float M-LOK | Standard Barrel Nut | Type III Hardcoat Anodized | Mid-length to rifle builds |
| Fortis Night Rail | 9.6”, 12”, 15” | M-LOK | Proprietary Anti-Rotation System | Type III Hardcoat | Tactical or competition use |
Every Fortis rail combines rigid structure and modular adaptability — ensuring your rifle stays light, balanced, and mission-ready.
Fortis REV II vs Fortis Night Rail
Both Fortis rails are precision-built for the modern AR-15 platform, but each caters to a specific type of shooter:
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REV II Series:
The REV II focuses on simplicity and lightweight efficiency. Its one-piece design offers exceptional rigidity and straightforward installation using the factory barrel nut. Perfect for minimalist or competition setups. -
Night Rail Series:
The Night Rail takes modularity to the next level. It features a unique anti-rotation mounting system and continuous top rail alignment, offering superior accessory placement and stability under heavy use. Ideal for professional applications or heavy-duty builds.
Whether you want lightweight speed or tactical versatility, both models deliver Fortis’ signature balance of strength, innovation, and style.
Why Buy Fortis Rails from Mounts Plus
Mounts Plus is an authorized Fortis Manufacturing dealer, trusted by shooters nationwide for premium firearm components and accessories.
When you shop with us, you get:
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100% authentic Fortis products
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Real inventory and fast U.S. shipping
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Expert support from firearm enthusiasts
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Secure online checkout and hassle-free returns
With over 25 years of experience in tactical gear and firearm upgrades, Mounts Plus is committed to helping you build and maintain your rifle with confidence.
Fortis Rail Installation & Compatibility
Both Fortis REV II and Night Rail models are designed to fit standard AR-15 upper receivers. Installation is straightforward — no gunsmithing required.
Each rail provides ample internal clearance for piston systems like Adams Arms, and the free-float design ensures consistent accuracy by isolating the barrel from external pressure.
Whether you’re running a mid-length or rifle-length gas system, Fortis has the perfect size rail for your configuration.
Frequently Asked Questions (FAQ)
Q: Which Fortis rail is right for me — the REV II or Night Rail?
A: The REV II is ideal for lightweight builds or competitive shooting, while the Night Rail is best for tactical or duty applications requiring added rigidity.
Q: Do Fortis rails fit standard AR-15 uppers?
A: Yes, both the REV II and Night Rail are compatible with standard mil-spec AR-15 receivers.
Q: Are Fortis rails M-LOK compatible?
A: Yes, all Fortis rails use the M-LOK mounting system for modular accessory placement.
Q: What lengths are available?
A: Mounts Plus carries Fortis rails in 9.6”, 12”, 13.8”, and 15” configurations to fit different gas systems.
Q: What makes Fortis rails different from other brands?
A: Fortis combines cutting-edge machining, lightweight design, and easy installation using a standard barrel nut — setting them apart from heavier, proprietary systems.
Upgrade Your Rifle with Fortis Rails Today
If you want a handguard that’s as reliable as it is refined, Fortis rails deliver precision, performance, and innovation in every design.
👉 Order your Fortis REV II or Night Rail from Mounts Plus today — and experience the difference that true engineering excellence makes.