The Daniel Defense MFR XS 13.5 M-LOK Rail in Black is a free-float AR-15 handguard built for a rigid, lightweight feel. It features a steel barrel nut, an uninterrupted Mil-Spec 1913 Picatinny upper rail for consistent optic and accessory mounting, and M-LOK attachment points for secure customization. A patented bolt-up mounting system helps provide a stable fit, while ambidextrous sling swivel attachment points add practical carry versatility.

Key features

• Free-float barrel design to help improve consistency under use
• Uninterrupted Mil-Spec 1913 Picatinny upper rail for reliable sight and optic mounting
• M-LOK attachment points at 7 positions for flexible accessory setup
• Patented bolt-up mounting system for secure, repeatable installation
• Steel barrel nut for robust interface and durability
• Aircraft-grade 6061-T6 aluminum construction with Mil-Spec Type III hard coat anodized finish

A solid, lightweight foundation for building or upgrading your AR-15, with the mounting versatility you expect from Daniel Defense.