hi I just got a dpms .308 with a 24" fluted barrel and a new handguard, I have changed out handguards on ar15s tons of time but I cant figure out this one?
You didn't say which model so I am going to assume it is the one with the Free Floating Aluminum Guard.
If this is the case the barrel nut is also part of the handguard. You may need a strap wrench to break it loose and I have hear rumours that DPMS uses a small amount of low temp lock tight to keep it from loosening. So you may need a little heat as well. You can call them to confirm.
The barrel nut and handguard form the entire handguard. Usually by having someone hold the rifle, applying a little heat and then use the belt wrench about 2-3 inches from the receiver will break it loose. Then just unscrew it. Should be right hand threads..
I can think of quite a few ways to heat up the area, but none seem like a good way to treat my rifle. Any suggestions on how to apply heat to the receiver-barrel nut interface?
Thanks for the advice. I have access to a heat gun. And also to a hot climate (MS). One or the other should loosen up the loc-tite I suppose. Can't wait to get back to the states and try it out.