The Fortis Camber Rail, 15.3in, M-LOK, Black (brand part no. 556-CAM-153-ML) is a free-float AR-15 handguard built around Fortis’s Camber Lock mounting system. Fortis Manufacturing built the Camber Lock as the next evolution of its already popular handguard line, aimed at shooters who want an even more rock-solid mounting platform than a standard barrel-nut rail. The stainless steel barrel nut and locking camber nuts are purpose-built for rigidity and weight savings at the same time, and the system locks down with just a castle nut wrench and the included T30 Torx L-Key. Installation takes only a few minutes, and just as importantly, removal for barrel or gas system service is just as fast. M-LOK slots run the usual 3, 6, and 9 o’clock positions, with additional slots at the 1:30, 4:30, 7:30, and 10:30 positions for lights and switches.

Key Specifications

• Measures 15.3 inches long, sizing it for a longer-barreled AR-15 build.
• Mounts using Fortis’s Camber Lock system, built for a rock-solid, easily removable platform.
• Uses a stainless steel barrel nut and locking camber nuts for rigidity and weight savings.
• Includes a T30 Torx L-Key for installation (a castle nut wrench is required but not included).
• Places M-LOK slots at the 3, 6, and 9 o’clock positions, plus 1:30, 4:30, 7:30, and 10:30 for lights and switches.
• Finished in black for a standard tactical appearance.

Frequently Asked Questions

What tools do I need to install this rail? A castle nut wrench (not included) plus the included T30 Torx L-Key to lock down the Camber Lock system.

Is this rail easy to remove for service? Yes, Fortis designed the Camber Lock system to be quick both to install and to remove when servicing the barrel or gas system.

Buy the Fortis Camber Rail, 15.3in

Get a rock-solid, easily serviceable free-float rail with generous M-LOK accessory space. Browse Schaefer Defense’s AR handguards and order from our Lubbock, Texas gun shop for fast shipping.