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Home 
Faq Article 60
How do I loosen the castle nut on my carbine?
Logged at 07:33pm on December 12th, 2006 by Jason
First check the perimeter of the castle nut where it mates the receiver end plate to ensure it wasn’t staked at the factory. If it has been staked, you will see an indentation where the plate meets the castle nut from the impact of a punch. If staked, you will need to apply quite a bit of pressure to break the stake ( possibly a more stout spanner / armorers wrench as well ).
If loc-tite has been applied to the threads on the receiver extension ( buffer tube ) heat will soften it enough to allow you to break it free. Either a heat gun or hair dryer will do the trick. Turn it on hot / high and let the heat do its job. Applying sufficient force at this point should break the nut loose.
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