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WTK: SA Inc. Neutered FH Removal

This is a discussion on WTK: SA Inc. Neutered FH Removal within the Gunsmithing forums, part of the M14 M1A Forum category; I was told the SA Inc. neutered FHs are pinned. If so is it the castle nut that is pinned and how hard is it ...


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Old December 31st, 2016, 03:01 PM   #1
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WTK: SA Inc. Neutered FH Removal

I was told the SA Inc. neutered FHs are pinned. If so is it the castle nut that is pinned and how hard is it to remove the pin and castle nut?

Happy New Year Everyone!

Dane

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Old December 31st, 2016, 04:11 PM   #2
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I never heard of a SA inc. being pinned but I may be wrong. I changed mine. Just had to remove the Allen headed set screw and then the castle nut. You need castle nut pliers to remove the castle nut.

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Old December 31st, 2016, 04:35 PM   #3
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No pins on any of mine.

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Old December 31st, 2016, 04:50 PM   #4
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They are not pinned, but you still have to back out the set screw in front before you can turn the castle nut.

Sometimes it is extremely difficult to loosen a castle nut for the first time.

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Old December 31st, 2016, 05:56 PM   #5
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They are not pinned, but you still have to back out the set screw in front before you can turn the castle nut.

Sometimes it is extremely difficult to loosen a castle nut for the first time.
KurtC,

Thank you Sir, I thought it was just me who had a hard time taking the castle nut off!

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Old December 31st, 2016, 06:07 PM   #6
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No pinning except the set screw to my knowlage. Unlike my Norinco I recently acquired. Had the drimmel the weld off of the castle nut......It was a pain but still simple to do.

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Old December 31st, 2016, 06:21 PM   #7
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Originally Posted by M1AFL View Post
KurtC,

Thank you Sir, I thought it was just me who had a hard time taking the castle nut off!
I've had to use a padded bench vice and a leather glove more than once.

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Old January 1st, 2017, 09:44 AM   #8
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The reason I asked this question is that an old friend of mine tried to take his neutered SA Inc. FH off and and the castle nut would not move. He broke his tool trying to remove the castle nut. He took it to a Gunsmith and he had to cut it off. He showed him the pin and parts that he removed. That is the only pinned FH story that I have ever heard of.

I am going to remove one from my SA rifle. I do not have a castle nut tool so I will need to get one or borrow one. I am a member of the PA Firearms Owner Forum and there maybe someone local to me who has a castle nut tool to lend me.

Later today I may search youtube and see if anyone posted another way to remove the FH without a tool.

Thank You All and I hope You All have a Safe, Healthy and Happy New Year!

Dane

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Old January 1st, 2017, 12:42 PM   #9
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First, remove the set screw in front. When using castle nut pliers, make sure the tips are in castle nut recesses that are directly opposite each other.

If it doesn't budge with hand strength, you can take a plumber's propane torch and heat up just the castle nut. It will expand and unscrew more easily. Be sure to wear a glove on the hand holding the gas cylinder.

Once the castle nut is loose, you will need to slide the muzzle device forward as you unscrew the nut. On stubborn flash hiders, tape up the underside where the lug is and use a brass punch to tap it forward.

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Old January 1st, 2017, 12:50 PM   #10
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I know of a few shops in CT that are pinning everything. Interpretation of the new threaded barrel law is driving folks nuts.

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Old January 2nd, 2017, 04:54 AM   #11
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I know of a few shops in CT that are pinning everything. Interpretation of the new threaded barrel law is driving folks nuts.
He may have gotten one of those. I know he bought it through GB.

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