Ultra-lightweight Composite AR-15 Keymod Rail Handguard - 16.5 inch | FDE

Quad Rails

$ 94.95


$ 94.95
  • Made of strong, ultra-lightweight, composite plastic.
  • Free float design attaches directly to the receiver without touching the barrel or impacting barrel harmonics.
  • Universal keymod rail system allows for modular attachment of picatinny rifle accessories such as bipods, grips, lights, or sights.
  • Available in black and flat dark earth

    Package includes the 15 Inch AR-15 Free Float Keymod Handguard plus two 5.3 Inch/13 Slot Keymod Rails. It installs on all standard AR-15 models. The free float design attaches directly to the receiver without coming into contact with the barrel or impacting barrel harmonics. The universal Keymod rail platform accepts all standard Keymod accessories.

    The handguard includes the aluminum barrel nut, castle nut, and anti-rotation screw.

    Lightweight, low profile design with a 1.75 inch inside diameter; composite plastic construction, only 13 ounces in weight; 15 inches in total length.

    Package also includes two 5.3 Inch/13 Slot Keymod Picatinny Rails for modular attachment of accessories.

    Please note that installation of a free float quad rail requires additional tooling and gunsmithing expertise. We recommend consultation with an experienced gunsmith. When installing the barrel nut, we recommend using 30-35 lbs of torque. The barrel nuts are made from 6061 grade aluminum which, although significantly lighter than steel barrel nuts, can be damaged under excessive force. All Monstrum Tactical rail and accessory products are backed by a lifetime replacement guarantee. Monstrum Tactical only sells through and provides support for purchases made through our Monstrum Tactical store.

    Please note that installation requires additional gunsmithing tools and expertise. For questions regarding fitment and installation, please view our AR-15 handguard install guides below:

    Tools and Parts Checklist for AR-15 Free Float/Keymod Handguard Install  


    Step-by-Step AR-15 Free Float Installation Guide

    Returns Policy

    The Monstrum Tactical 30 Day Satisfaction Guarantee

    Monstrum Tactical stands behind each of our products with a 30-day no questions asked return policy. Return items must be returned in unused condition with all original parts and packaging. For return items, the buyer is responsible for return shipping. To ensure fast and accurate return processing, all returns must first be authorized via email.

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