FAB Defense AR15 Quad Rail Handguard

The FAB Defense AR15 Quad Rail Handguard is a set of replacement handguards that will give you a four rail system for installing accessories onto your AR15. These quad rails are machined in Israel by FAB Defense and are currently being used by soldiers in the Israeli Defense Force. We have all three lengths available so that no matter what style of AR15 you have, we can help you outfit it with the best quad rail system in the world.

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American Owned and Operated


20+ Years In Business

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Ships from Pennsylvania


The Quad Rail System has been combat proven by military forces who use the M16 rifle, including the Israeli Defense Force. With the popularity of the AR15, the proven versatility of this style of handguard, and the explosion of accessories for the AR15 there is no better time to outfit your AR15 with a set of quad rails. With the FAB Defense quad rail system you can get the same quad rails that soldiers in the Israeli Defense Force receive with their rifles.

We have this Quad Rail System available in all three lengths. The three lengths are the 6" Carbine Length, 8" Mid Size Length, and 11.5" Full Length rail. Once installed onto your AR15, you will have four Picatinny rails that you can use to install accessories to enhance the capabilities of your rifle. Some of the accessories available would include bipods, front grips, lasers, and optical sights.

  • Four 1913 MIL-STD Picatinny Rails
  • Precision Machined from 6061 T6 Billet Aluminum for Maximum Durability
  • Rugged Construction - Will Not Bend or Deform
  • Field Tested by the Israeli Defense Force
  • No Gunsmith Required to Install

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Customer Reviews

Good rail, bad screws.
Review by neil
Verified Buyer
For some damn sill reason the four allen screws are two different sizes.

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