AR-15 Quad Rail Handguard - 15 inch | Free Float | Black (OPEN BOX)

Open Box

$ 44.95


Everything has been checked and tested for complete functionality. Items may have scratches or cosmetic defects. Perfect appearance is not guaranteed.

ALL SALES ON OPEN BOX ITEMS ARE FINAL. 30 day replacement warranty only. No refunds.

  • Free float design attaches directly to the receiver without touching the barrel or impacting barrel harmonics.
  • Allows for the mounting of standard picatinny rifle and AR-15 accessories such as bipods, grips, lights, and sights.
  • Available in black.

    Our 15 inch free float quad rail handguard installs on standard AR-15 rifles, extending beyond the front gas block and further down the barrel. The four Picatinny rails allow for the attachment of tactical accessories such as bipods, grips, or sights. The free float handguard attaches directly to the receiver, without coming into contact with the barrel or impacting barrel harmonics, thus allowing for more precise shooting.

    Crafted from lightweight aircraft grade 6061 aluminum, the quad rail weighs 1.4 pounds, is 15 inches in length, 2.5 inches in height, 2.5 inches in width, with a 1.7" internal diameter at its narrowest point.

    The package includes an aluminum barrel nut, castle nut, and anti-rotation set screw.

    Note that the aluminum barrel nut is significantly lighter than steel barrel nuts, however it may be subject ot damage during installation. We recommend using no more than 35 pounds of torque during installation.

    Please note that installation of a free float handguard requires additional gunsmithing tools and expertise. For questions regarding fitment or installation, please refer to 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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