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FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards — 2 models

FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards, Black, FX-UPRB
FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards, Desert Tan, UPR164-FDE
FAB Defense Standard Picatinny Rail for AR15/M4/M16 Handguards, Black, OD Green
FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards, Black, FX-UPRB
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FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards, Black, FX-UPRB
FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards, Desert Tan, UPR164-FDE
2 of 3 images
FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards, Desert Tan, UPR164-FDE
FAB Defense Standard Picatinny Rail for AR15/M4/M16 Handguards, Black, OD Green
3 of 3 images
FAB Defense Standard Picatinny Rail for AR15/M4/M16 Handguards, Black, OD Green

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Questions & Answers
Is this item is only the rail and does not include the handguard? Expert Answer

Correct, this only includes the picatinny rail, designed to fit 2-piece polymer AR15 handguards.

by Ethan, Gear Expert, January 3, 2025
Will this fit my Colt AR15M4? Expert Answer

Yes, the FAB Defense Standard Picatinny Rail will be compatible with your Colt AR15 as long as it uses a carbine length gas system and a 2-piece handguard.

by Ethan, Gear Expert, October 17, 2023
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Customer Reviews
Helpful Positive Review
Review of the picatinny rail by Fore grip for Ryan, May 10, 2020
Loved it fitted perfectly with my standard AR handrail thanks a lot I was very skeptical at first but as I got into installing it it felt wonderful in my hand and even better when I was done and went out to shoot
1/1 found this helpful
Helpful Positive Review
FAB defense picatinny rail by Hector Cortes, Verified Owner, October 24, 2023
Good fitment on my colt m4, overall satisfied with my purchase.
1/1 found this helpful
Helpful Positive Review
Mako Handguard Rail by Legacy Reviewer, Verified Owner, November 10, 2010
Great little rail. I had to dremel off one of the screw ports because it would not align with my handguard. It was an easy fix. If you need a bottom rail, this is it. Recommend. Pros: Durable, Looks good, Price Cons: Modification may be required.
2/2 found this helpful
Helpful Positive Review
Great Product... by Big Ern, Verified Owner, June 19, 2017
The picture is deceiving...but it's not a bad thing. There are actually 6 mounting nuts and bolts...not 3. Like others said some small modifications were needed but it fits well and it's strong. YouTube has good videos on pulling back the D ring wi...
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2/2 found this helpful
Helpful Positive Review
Decent and inexpensive by merlyn, June 11, 2016
This is perfect for factory handguard and allows attachments to sit at the correct straight angle.As another reviewer mentioned the holes on the factory handguard are just a little off from this piece. A drill fixed that easily and the piece fit and ...
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1/1 found this helpful
Helpful Negative Review
Does not fit standard 9" handguards by Shipwreck68, April 11, 2022
Does not fit standard 9" handguards. These appear to only fit 6" handguards. The holes do not even line up correctly for 9". Someone wrote they had to do some Dremmel work...this should not be the case for any quality pieces.
1/3 found this helpful
Read All 19 Reviews
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  • FAB Defense Tough Polymer AR15/M4/M16 Standard Handguard, Flat Dark Earth, FX-HGST
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Product Info for FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards

The FAB Defense Standard Picatinny Rail was designed especially for the M16/M4/AR-15, but also fits many other weapons with small modifications. These Picatinny Rails from the revolutionaries at FAB Defense feature a special angle in order to position devices parallel to the barrel. A FAB Defense AR15/M4/M16 Handguard Rail will transform your gun to a weapon capable of mounting various devices. In addition, the FAB Defense UPR - Polymer Picatinny Under-Rail is molded from a reinforced polymer composite.image

Specifications for FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards:

Manufacturer: FAB Defense
Fabric/Material: Polymer
Gun Type: Rifle
Gun Model: M4, AR-15
Length: 155 mm, 6.1 in
Width: 21 mm, 0.83 in
Height: 16 mm, 0.63 in
Weight: 0.101 lb, 46 g
Condition: New
Quantity: 1

FAB Defense Standard Picatinny Rail, 1S0-T8-UPR164

  • Designed especially for the M16/M4/AR-15, but also fits many other weapons with small modifications
  • Designed with a special angle in order to position devices parallel to the barrel
  • Transforms your gun to a weapon capable of mounting various devices
  • Molded from a reinforced polymer composite
  • Easy to install

Package Contents:

  • FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards

FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards Orderable Models

List of Orderable Models

  • FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards, Black, FX-UPRB , MPN: fx-uprb , UPC: 7290105940261 , Code: 1S0-T8-UPR164-FX-UPRB
  • FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards, Desert Tan, UPR164-FDE , MPN: FX-UPR164FDE , UPC: 7290105945532 , Code: 1S0-T8-UPR164-UPR164-FDE

FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards Unavailable & Discontinued Models

List of Unorderable Models

  • USED, FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards, Black, FX-UPRB , MPN: FX-UPRB-EDEMO , Code: 1S0-T8-UPR164-FX-UPRB-EDEMO-OB-A
  • FAB Defense Standard Picatinny Rail for AR-15/M4/M16 Handguards, OD Green, FX-UPRG , MPN: fx-uprg , UPC: 7290105945525 , Code: 1S0-T8-UPR164-FX-UPRG
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