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3/7/2011 1:00:10 PM EDT
I need to remove the front sight/flash hider, but do not have castle nut pliers.
Hex nut is removed and It will not move...
Any ideas??

And I know, buy castle nut plyers, but thats not an option.
3/7/2011 1:12:58 PM EDT
[#1]
The nut is on pretty snug, I went the route of ordering the pliers but you can grind the tips down on these pliers until the fit the slot  YMMV
3/7/2011 1:19:54 PM EDT
[#2]
Brass punch inserted into exposed groove. Tap it with a hammer to loosen. Not my first choice, but another way of doing it.
3/7/2011 1:24:18 PM EDT
[#3]
I have tried that and its a no go...
It will not move, pin is removed and trying to turn counter clockwise.
3/7/2011 1:46:26 PM EDT
[#4]



Quoted:


I have tried that and its a no go...

It will not move, pin is removed and trying to turn counter clockwise.


If you don't mind mangling the nut, just use pliers.



 
3/7/2011 1:49:54 PM EDT
[#5]
Are you near Charlotte?  I don't have a set of those pliers but do have a huge collection of tools and bet I could get that off without buggering it up.
3/7/2011 1:56:12 PM EDT
[#6]
Im in Winston and I have done the pliers thing and its not moving.
I don't know whats the problem.
3/7/2011 2:02:35 PM EDT
[#7]
Is it a Springfield Armory or Polytech?

The China made rifles used to have a small spot weld to keep the castle nut in place...........
3/7/2011 2:05:05 PM EDT
[#8]
Soak the thread junction––inside and out––with some REAL penetrating oil, such as Kroil.  You may have to use a patch saturated in Kroil to soak the inner juncture.  Repeat daily for a week.

Be patient.  At the end of a week of soaking, give it a try.

On re-assembly, use some hi-temp anti-sieze compound on all threads.
3/7/2011 2:16:33 PM EDT
[#9]
Its a Springfield and its been soaking in WD-40.
It only has around 100 rounds through it.

I have a Troy MCS thats going on it and I'm replacing the front sight/hider with a vortex.

I will have to give Kroil a try.
3/7/2011 2:53:03 PM EDT
[#10]
Quoted:
Its a Springfield and its been soaking in WD-40.
It only has around 100 rounds through it.

I have a Troy MCS thats going on it and I'm replacing the front sight/hider with a vortex.

I will have to give Kroil a try.


WD-40 is definitely not a specific penetrating oil.  For best effect, use some carbureator cleaner spray inside the barrel to remove the WD-40, and some carbon as well.  Might pay you to use an appropriate diameter brass brush, rotating it, to help in carbon removal at the juncture of flash suppressor and barrel.

Don't let the carb cleaner get onto your stock!  

3/7/2011 3:36:00 PM EDT
[#11]
I just addressed this on another board. Do like panther308 said and grind down the tips of wide-jawed vise grips to fit the castle nut slots. I promise you, they will remove the most stubborn castle nuts, even with mangled slots.

3/7/2011 3:36:53 PM EDT
[#12]
Quoted:
Im in Winston and I have done the plyers thing and its not moving.
I don't know whats the problem.


Did you take the set screw out so the castle nut will move?
3/7/2011 3:45:39 PM EDT
[#13]
Yes and attempting to turn it counter clockwise and not moving.
I don't have a grinder.  I have tried using a punch and hamer in an attempted to get it to move, but no luck.
I'm amazed that pliers are not moving it, all its doing is chewing up the castle nut.


I’m at the point that I’m going to cut the sight off so I can better grip of the castle nut with pliers.
Never thought it was going to be this hard to remove it.
3/7/2011 5:07:02 PM EDT
[#14]
I had to remove one last week. With the correct pliers, it wouldn't move. I soaked it for three days with penetrating oil and it came right off. I had a propane torch ready to use, but didn't need it. I suspect that someone used Lock-tite when it was installed.
3/7/2011 5:40:27 PM EDT
[#15]
Benny 6; That's a great idea. One of the best tips I've seen recently for the M14.

Vice Grips are made of good quality tool steel.  They are  extremely tough, and hold up well. A good investment.   I can but a pair locally and grind the jaws myself.

AmryOrdGuy makes a valid point, could be a case of red Lock-tite. Fortunately, castle nuts are cheap.
3/7/2011 6:04:35 PM EDT
[#16]
Quoted:
I just addressed this on another board. Do like panther308 said and grind down the tips of wide-jawed vise grips to fit the castle nut slots. I promise you, they will remove the most stubborn castle nuts, even with mangled slots.

http://i1205.photobucket.com/albums/bb423/tonyben3/DSCN4504.jpg




Good suggestion!

There are some really crappy "factory" wrenches out there. This one will obviously prevail...!





3/7/2011 6:12:41 PM EDT
[#17]
Quoted:
Yes and attempting to turn it counter clockwise and not moving.
I don't have a grinder.  I have tried using a punch and hamer in an attempted to get it to move, but no luck.
I'm amazed that pliers are not moving it, all its doing is chewing up the castle nut.


I’m at the point that I’m going to cut the sight off so I can better grip of the castle nut with pliers.
Never thought it was going to be this hard to remove it.


Are you trying to move the nut counterclockwise looking at it from the muzzle or looking at it from the rear.
Turn the nut clockwise looking at it from the muzzle, you want the nut moving towards the back of the barrel.
Once it is loose you turn the flashider counterclockwise while looking at it from the muzzle to move it forward moving the castle nut forward as you go until both pieces free from the threads.
Some installers glue everything together with LocTite, don't ask me why, so if it still won't move try playing a propane torch over the area until uncomfortable, burn your fingertip hot, let cool and trya again. HTH
3/8/2011 12:17:27 PM EDT
[#18]
I finally found the pic I had;

The right tool will save you a ton of aggravation :

These are the pliers I purchased from Brownells:



Make sure you remove the setscrew;



Push down on what ever pliers you decide on:



Mine came right off, maybe just lucky:



3/8/2011 4:21:11 PM EDT
[#19]
I've been in your shoes before and NOTHING would get that nut off except the actual USGI tool.  All the others I used were of weaker quality/heat treatment and they bent before the nut moved.  I got a real set of USGI pliers and it did the trick.
3/8/2011 5:34:22 PM EDT
[#20]
Success at last…

Thanks for everyone’s help.

I was finally able to get the castle nut off.
I let it soak for a day and with a bigger set of pliers it came off.

Again thanks for your help.
3/9/2011 4:26:47 AM EDT
[#21]
Glad ya got it off
3/9/2011 2:24:17 PM EDT
[#22]
Yeah, we are glad you got your nut off.
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