Daniel Defense MFR XL KeyMod

The Daniel Defense MFR XL (Modular Float Rail XL) utilizes the KeyMod attachment system for weight savings and superior cooling compared to quad rail designs. The "XL" designation indicates an increased internal diameter designed to accommodate suppressors with proper clearance for installation and heat dissipation.

Built from aircraft-grade 6061-T6 aluminum with Mil-Spec Type III hard coat anodizing, the MFR XL features Daniel Defense's patented bolt-up mounting system for rock-solid attachment. KeyMod attachment points are located on the sides, bottom, and upper 45-degree positions, while an uninterrupted MIL-STD 1913 Picatinny rail runs the full length of the top for optics and backup sights. Anti-rotation tabs come standard for proper alignment during installation.

The MFR XL is available in multiple lengths (9", 10", 13.5", 15.5") to accommodate various barrel lengths and gas system configurations. Compatible with pinned low-profile gas blocks on pistol, carbine, mid-length, or rifle-length gas systems.