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Posted: 1/9/2021 1:21:35 PM EST
Other than using a stiff piece of plastic and a hammer, is there a specific tool to use to tighten this against the handguard to secure it?

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Link Posted: 1/9/2021 1:24:37 PM EST
Can you find a castle nut wrench big enough to fit around the nut?
Link Posted: 1/9/2021 1:30:26 PM EST
[Last Edit: 1/9/2021 1:33:54 PM EST by firepyro515]
That should just uses a standard AR armorers wrench as long as it has the prongs on one side.

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The other option is to buy a YHM forearm wrench as that hole pattern is pretty universal (YHM-9621)
Link Posted: 1/9/2021 1:45:37 PM EST
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Originally Posted By firepyro515:
That should just uses a standard AR armorers wrench as long as it has the prongs on one side.

https://www.AR15.Com/media/mediaFiles/145596/ARA_JPG-1771605.JPG

The other option is to buy a YHM forearm wrench as that hole pattern is pretty universal (YHM-9621)
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Have one of those and can confirm it doesn't work.
It worked great for the barrel nut itself but not that outer ring.
Link Posted: 1/9/2021 1:46:41 PM EST
You'll need a spanner wrench, possibly proprietary to the manufacturer.


Whose parts?
Link Posted: 1/9/2021 1:54:41 PM EST
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Originally Posted By JThompson:


Have one of those and can confirm it doesn't work.
It worked great for the barrel nut itself but not that outer ring.
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Lol, i totally misread the actual post and only read the title and saw the barrel nut. A spanner wrench is going to be needed for the collar. One thing I used to do if I didn't have one was place the collar where I thought it should be and tighten the rail against it. Not the best method, but still worked for what I needed.
Link Posted: 1/9/2021 2:17:49 PM EST
Is that a PRI handguard?
Link Posted: 1/9/2021 3:28:56 PM EST
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Originally Posted By Tigwelder1971:
You'll need a spanner wrench, possibly proprietary to the manufacturer.
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they make adj spanners but youll need i think a 2 inch one
Link Posted: 1/9/2021 3:35:34 PM EST
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Originally Posted By firepyro515:

A spanner wrench is going to be needed ....
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Thanks.
Had to google "spanner wrench".
Link Posted: 1/10/2021 9:21:26 AM EST
Link Posted: 1/10/2021 10:48:37 AM EST
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Originally Posted By DoubleARon:
https://yhm.net/forearm-wrench.html
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^ ^ ^ That's the proper wrench. It's the little claw on the tip of the curved part that engages the notch in the nut.
Link Posted: 1/10/2021 1:24:02 PM EST
Link Posted: 1/10/2021 2:49:03 PM EST
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Originally Posted By DoubleARon:
https://yhm.net/forearm-wrench.html
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This seems to be designed for the exact item.
Currently debating to buy it or right now debating about changing handguards.
Link Posted: 1/10/2021 3:02:45 PM EST
If you are referring to the outer ring, I use this wrench for those types of nuts:

Precision Reflex 05-0081.

JT
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