The Magpul MOE M-LOK Handguard (brand part number MAG427-FDE) is a rifle-length handguard built for AR-15/M16 rifles with a rifle-length gas system, finished in Flat Dark Earth polymer. Magpul combines the light weight of a standard handguard with real modular flexibility, adding M-LOK slots at the 2, 6, and 10 o’clock positions for Picatinny rail sections or direct-attach M-LOK accessories like lights, slings, or grips. Unlike Magpul’s carbine and mid-length SL handguards, this rifle-length model works with both direct impingement and most piston-driven gas systems, and installs using either a triangular or round front retaining cap. A relieved area at the top rear accommodates most overhanging optic mounts, and front extensions with a lower lip protect your hand from the hot front sight assembly.

Key Specifications

• Built for AR-15/M16 rifles with a rifle-length gas system.
• M-LOK slots at the 2, 6, and 10 o’clock positions.
• Molded from reinforced, heat-resistant polymer.
• Includes an integral riveted aluminum heat shield.
• Front extensions and lower lip protect the hand from the hot front sight assembly.
• Compatible with both direct impingement and most piston-driven gas systems.
• Installs with either a triangular or round front retaining cap.
• Direct replacement for standard plastic M16-type rifle-length handguards.
• Relieved top-rear area accommodates most overhanging optic mounts.
• Measures approximately 12.5 inches long.

Frequently Asked Questions

Will this work on a piston-driven AR? Yes, it’s compatible with both direct impingement and most piston-driven gas systems.

What retaining cap does this need? Either a triangular or round front retaining cap.

Will this clear an overhanging optic mount? Yes, a relieved area at the top rear is built to accommodate most overhanging mounts.

Buy the Magpul MOE M-LOK Rifle-Length Handguard for AR-15/M16 – FDE

Get true M-LOK modularity on a rifle-length gas system, direct impingement or piston. Order it from our Magpul Industries lineup, part of our AR handguards selection, at our Lubbock, Texas gun shop for fast, direct shipping.