Knights Armament URX 3.1 Handguard SR-25 Rifle Length with Extended Top Rail 13.5″ Aluminum Black


Category: Product ID: 15474


The Knights Armament URX 3.1 Handguard SR-25 Rifle Length with Extended Top Rail is a free floating, fully modular replacement forend for the SR-25 platform. Unlike traditional quad rail designs, the URX 3.1 incorporates short sections of M1913 Picatinny rail at its front and rear ends for mounting tactical accessories, eliminating the commonly unused sections of rail for reduced overall weight and a more comfortable grip. A total of 4 integral QD sling swivel sockets are provided for ambidextrous sling compatibility. Add-on KAC URX 3.1 Rail Panels and additional rail sections allow shooters to customize the forend to their needs (both sold separately).

Rifle Requirements: It is recommended that this SR-25 URX 3.1 be used with a rifle length gas system only due to potential interference issues if a gas block were to be run underneath the rail. Disassembly of the rifle’s gas system and removal of the factory barrel nut will be necessary. This forend uses a proprietary barrel nut that MUST be installed using a KAC SR-25 URX Barrel Nut Wrench (PN: 23383, Sold Separately). Compatible with SR-25 or similar rifle variants only; not for use with AR-10’s. Installation instructions, barrel nut and hardware are included.


  • Weight: 14.2oz
  • Length: 13.5″
  • Free Float: Yes
  • Material: Aluminum
  • Finish:Black Anodizing


Made In United States of America

WARNING: Cancer and Reproductive Harm –


Product Information

Color Black
Finish Anodized Black
Material Aluminum
Length 13.5 Inches
Weight 14.2 Ounce
Rail Style Picatinny
Gas System Length Rifle
Country of Origin United States of America
Compatible With
Knight’s Armament SR-25

Delivery Information

Shipping Weight 1.426 Pounds


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