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Q&A for Guntec USA Ultra Thin Key Mod Free Floating Handguard w/Monolithic Top Rail — 7 Questions & 7 Answers

Name Guntec USA Ultra Thin Key Mod Free Floating Handguard w/Monolithic Top Rail (4.2)
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Q
MJ50, member, from CA, United States, asked on February 20, 2019

what is end-to-end length of 7" model?

Expert Answer
A
Answered by Jonathan D., Gear Expert, from IL, United States, on July 01, 2019

It is a 7" overall length.

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Q
Spain, member, from MO, United States, asked on January 25, 2019

Will this work on my smith and wesson m&p 15?

Expert Answer
A
Answered by Jonathan D., Gear Expert, from IL, United States, on July 01, 2019

If you MP15 is a free float model you will just need to replace the barrel nut to install this handguard. If your rifle is a model with a drop in handguard you would need to convert to a free float system which involves removing the delta ring system, end plate, and replacing the gas block with a low profile model, as these are free float handguards.

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Q
Ramjet, member, from OH, United States, asked on January 13, 2019

Will the GT-675JK hand guard work well with my RRA 9mm upper with the round 4" hand guard?

Expert Answer
A
Answered by Jonathan D., Gear Expert, from IL, United States, on July 01, 2019

If your RRA 9mm is a model with a drop in handguard you would need to convert to a free float system which involves removing the delta ring system, end plate, and gas block, as these are free float handguards.

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Q
TJ, guest, from OH, United States, asked on January 11, 2019

Does this come with a barrel but and tool to tighten

Expert Answer
A
Answered by Jonathan D., Gear Expert, from IL, United States, on July 01, 2019

It does come with the barrel nut, it does not come with a tool as it uses a crows foot. Guntec offers a compatible crows foot separately which can be found here:

https://www.opticsplanet.com/guntec-usa-breaker-bar-socket-wrench-adapter.html

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Q
Shawn, guest, from PA, United States, asked on August 08, 2018

Will this fit the omni max hybrid 300 blackout pistol?

Expert Answer
A
Answered by Ethan C., Gear Expert, from IL, United States, on December 27, 2018

Yes, this should be compatible.

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Q
Jay, member, from TX, United States, asked on April 14, 2018

Does it work with Adam Arms Picatinny piston kit?

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A
Answered by Ethan C., Gear Expert, from IL, United States, on June 22, 2018

No, this is not compatible with the Adams Arms piston system.

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Q
Chuck, guest, from MI, United States, asked on January 07, 2021

So I have a ruger 5.56 and I’m looking to get a quad rail hand guard in the tan color. I need gas block for a quad rail. Anything else?

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