Fortis Manufacturing, Inc. REV II Free Float Rail

The Fortis Manufacturing REV II free float rail is a lightweight, modular handguard built for shooters who refuse to compromise between durability and weight savings. Built from aircraft-grade 6061-T6 aluminum with a military-spec hard coat anodize finish, the REV II uses a single-piece body design that strips away unnecessary material while maintaining the rigidity you need for precision shooting, tactical work, or casual range days. Its unique mounting system works with a standard AR15 barrel nut for straightforward installation—no special tools or proprietary hardware required.

Modularity is baked in: KeyMod slots at the 3, 6, and 9 o'clock positions give you flexibility to attach lights, vertical grips, rail sections, and other accessories without adding bulk. Rotation-limited QD sockets keep your gear in place, and anti-rotation tabs prevent the handguard from twisting under recoil or during transitions. Weighing just 6.7 ounces with a 1.340-inch inside diameter and 9.6-inch length, the REV II fits piston-driven uppers as well as direct impingement setups, making it a versatile choice across AR platform builds.

If you're building a lightweight patrol rifle, upgrading a competition gun, or simply want a handguard that does more with less, the Fortis REV II delivers the kind of thoughtful engineering that separates purpose-built gear from commodity parts. It's the kind of component that reminds you why attention to detail matters in the field.

Key Features

• Lightweight aircraft-grade 6061-T6 aluminum construction at just 6.7 oz
• Military-spec Type III hard coat anodize finish for durability and corrosion resistance
• Single-piece body design maximizes strength while minimizing weight
• KeyMod slots at 3, 6, and 9 o'clock positions for modular accessory mounting
• Rotation-limited QD sockets keep mounted gear stable and accessible
• Anti-rotation tabs prevent handguard movement under recoil
• Standard AR15 barrel nut mounting—works with most uppers without special hardware
• Compatible with both direct impingement and piston-driven AR platforms
• Continuous top Picatinny rail for optics and accessories

Specifications

Frequently Asked Questions

Will the Fortis REV II fit my AR15 upper?

Yes. The REV II uses a standard AR15 barrel nut, so it installs on any compatible upper without requiring proprietary hardware or adapters. It works with both direct impingement and piston-driven systems.

What accessories can I mount to the REV II?

The handguard features KeyMod slots at the 3, 6, and 9 o'clock positions, allowing you to attach lights, grips, rail sections, and other KeyMod-compatible gear. It also has a continuous top Picatinny rail for optics and additional accessories. Rotation-limited QD sockets keep your mounted items secure.

How much does the Fortis REV II weigh?

The REV II weighs just 6.7 ounces, making it an excellent choice for lightweight builds where every fraction of an ounce counts.

Is the REV II durable enough for hard use?

Yes. Despite its light weight, the single-piece aircraft-grade aluminum body and military-spec hard coat anodize finish are designed for durability. Anti-rotation tabs and rotation-limited QD sockets add operational reliability by preventing movement during recoil or rough handling.