Fortis REV II 15.3" M-LOK Free Float Rail - Black
Not Yet Rated | Write the First Review SKU: 222-FOR-REV-II-15_ML
UPC: 850016000000
MFG#: REV-II-15_ML

The Fortis REV™ II 15.3” M-LOK Free Float Rail System redefines what a performance-driven AR-15 handguard should be. Precision machined from a single piece of aircraft-grade aluminum, the REV II combines uncompromising strength with an ultra-lightweight design trusted by professionals, competitors, and tactical shooters alike.

We designed the REV II not to blend in—but to lead. From its slim, ergonomic profile to its standard barrel nut compatibility, every contour and cutout serves a purpose: superior handling, rigidity, and modularity without adding unnecessary weight.

Key Features of the REV™ II 15.3" M-LOK Rail System

• Ultra-Lightweight One-Piece Design: Engineered for maximum strength while reducing every possible ounce.

• M-LOK Compatibility: Accessory mounting slots at the 3, 6, and 9 o’clock positions for true modular versatility.

• Standard AR-15 Barrel Nut Mounting: No proprietary system required — installs quickly and securely.

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

• Precision Machining & Tight Tolerances: Ensures consistent accuracy and long-term reliability.

• Sleek Ergonomic Profile: Slim grip for better weapon control and reduced fatigue during extended use.

• Durable Type III Hardcoat Anodized Finish: Resists corrosion, abrasion, and the harshest environments.

Why Shooters Choose the Fortis REV II

The REV II isn’t just another free float rail — it’s the result of extensive design testing and real-world feedback.
Shooters who upgrade to the REV II immediately notice the difference: a handguard that feels lighter, fits tighter, and performs smoother than anything in its class.

Whether you’re building a precision rifle, upgrading your duty carbine, or optimizing for competition, the REV II delivers the perfect balance of weight, rigidity, and design innovation.

“Sturdy, lightweight, and feels great in hand. The best rail I’ve used.” — Verified Customer Review

Installation & Compatibility

Designed around the standard AR-15 barrel nut, the REV II simplifies installation for builders at every level.
Compatible with most mid-length and rifle-length gas systems, it provides plenty of clearance for piston setups and suppressor-ready barrels.

Choose from multiple finishes — Black, Flat Dark Earth (FDE), and Olive Drab Green (ODG) — to match your build.

REV™ II vs. Other AR-15 Rail Systems

The Fortis REV II offers a lighter, easier-to-install alternative — without sacrificing strength or precision.

Technical Specifications

• Length: 15.3”

• Material: 6061-T6 Aluminum

• Finish: Type III Hardcoat Anodized

• Weight: Approx. 8.3 oz (without barrel nut)

• Mounting System: Standard AR-15 Barrel Nut

• Platform: AR-15 / M16 / M4

• Attachment System: M-LOK

Frequently Asked Questions (FAQ)

Q: Will the Fortis REV II fit my AR-15 build?
A: Yes. The REV II fits any standard AR-15 platform and mounts directly to a standard barrel nut, making installation simple and secure.

Q: Is this handguard compatible with piston systems?
A: Yes — it has sufficient internal clearance for most Adams Arms and similar micro piston setups.

Q: How much does the 15.3” version weigh?
A: Approximately 8.3 ounces, making it one of the lightest full-length rails on the market.

Q: What finishes are available?
A: Black, Flat Dark Earth (FDE), and Olive Drab Green (ODG).

Q: What makes this rail different from competitors like BCM or Aero Precision?
A: The REV II offers the same or better rigidity at a lighter weight and installs using a standard barrel nut — no proprietary tools or parts needed.

Upgrade Your Rifle Today

Every ounce matters — every detail counts. The Fortis REV™ II 15.3" M-LOK Free Float Rail gives your AR-15 the edge it deserves in accuracy, weight savings, and handling.