Daniel Defense MFR 13.5 M-LOK Rail Assembly – Black

The Daniel Defense MFR 13.5 M-LOK Rail Assembly is a free-floating modular handguard designed for AR-15 platform rifles. This 13.5-inch rail uses the M-LOK attachment system for streamlined accessory mounting while maintaining a slim profile that improves handling and heat management. The MFR (Modular Float Rail) design eliminates unnecessary bulk while preserving structural rigidity across the full length of the handguard.

Machined from 6061-T6 aluminum with a hard-anodized black finish, this rail assembly features an uninterrupted top Picatinny rail for optics and backup sights. The M-LOK slots at 3, 6, and 9 o'clock positions allow for direct attachment of lights, grips, and other accessories without adding rail segments. Installation requires a barrel nut wrench (not included) and basic AR-15 armorer tools. Compatible with most mil-spec AR-15 upper receivers.

• Type: Free-floating M-LOK handguard
• Length: 13.5 inches
• Compatible Firearms: AR-15 platform rifles (mil-spec upper receivers)
• Material: 6061-T6 aluminum, hard-anodized black finish
• Mounting System: Proprietary barrel nut (included), M-LOK accessory slots
• Features: Continuous top Picatinny rail, slim profile, heat-dissipating design
• Use: Mid-length and carbine-length gas systems; verify clearance with specific barrel and gas block configurations