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Q&A for Knight's Armament URX 3.1 Forend Assembly — 5 Questions & 5 Answers

Name Knight's Armament URX 3.1 Forend Assembly (5)
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Q
Austin, member, from NH, United States, asked on March 02, 2021

Can you provide the thread dimensions and the top rail profile height? I cannot seem to find it anywhere

Expert Answer
A
Answered by Ryan Tarczynski, Gear Expert, from IL, United States, on April 23, 2021

Would have to contact manufacturer directly.

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Q
Epic, member, from CA, United States, asked on July 09, 2020

Does this come with a panel kit?

Expert Answer
A
Answered by Bethany Kopel, Gear Expert, from UT, United States, on February 16, 2021

Rail panels and additional rail sections are sold separately. Please reach out to us at techsales@opticsplanet.com and we can assist you in finding the proper recommendations.

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Q
Nate, member, from NH, United States, asked on August 21, 2019

It does come with a barrel nut though right?

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A
Answered by Jonathan D., Gear Expert, from IL, United States, on November 07, 2019

Yes, the barrel nut is included.

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Q
Jr, member, from CO, United States, asked on February 17, 2019

Does this rail come with the tool to install the handguard

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A
Answered by Zackaria, guest, from VA, United States, on April 26, 2019

No knights has a proprietary barrel nut wrench that must be purchased separately special tools for special operators

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Q
Matt, guest, from TX, United States, asked on May 22, 2018

Is this rail strictly proprietary for Knights Armament rifles only? Can it be installed on other brands that use free floating rails?

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A
Answered by TheGCDeez, member, from ID, United States, on May 30, 2018

No. This will fit on any mil spec AR platform. Do a Google search on this rail. You will see it on several different brands of rifles.

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Last updated 2025-11-12 UTC.