What Wrench For Old Style Round Hole Castle Nut?

[samnev]

I have an AR 10 with the old style castle nut with a series of round hole rather than the square notches. Can some one recommend a spanner wrench I could use a a vendor that might have one.
I want to install my new stock but can't get the castle nut off with any of the new style square castle nut wrenches I have.
TIA

 

[Oakland Tactical]

Re: What Wrench For Old Style Round Hole Castle Nut?

Many of the new combo tools have a pin to install and remove them. DPMS Wrench or you can look at a gun show for an old GI wrench.

 

[samnev]

Re: What Wrench For Old Style Round Hole Castle Nut?

Thanks for the rely but it looks like it has square tips for the new caste nut.

 

[Mike_in_FL]

Re: What Wrench For Old Style Round Hole Castle Nut?

Why not just buy a new nut? Then just use a punch and a hammer being careful not to tear up the threads?

 

[LoneWolfUSMC]

Re: What Wrench For Old Style Round Hole Castle Nut?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Santo</div><div class="ubbcode-body">Thanks for the rely but it looks like it has square tips for the new caste nut. </div></div>

The DPMS wrench that I use (same one pictured but with a flat black finish) has the round pin for the old castle nut. It also works on the new square notch nuts.

 

[BCP]

Re: What Wrench For Old Style Round Hole Castle Nut?

I did one with a pipe wrench and then installed a new nut. You could always just take it to the local auto parts store and look for an adj spanner.

 

[samnev]

Re: What Wrench For Old Style Round Hole Castle Nut?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: fngmike</div><div class="ubbcode-body">Why not just buy a new nut? Then just use a punch and a hammer being careful not to tear up the threads? </div></div>
With the punch, hammer and a little heat the nut is now free. My 2 PRS stock kits arriving. 1 Monday the other Tuesday.
Thanks for the help guys.