Quote Originally Posted by Dinosdeuce View Post
There was a an old thread on AR15.com concerning the use of anti-sieze on assembly of the barrel and receiver. If the anti-sieze has any moly it is not compatible with aluminum, as in will corrode the aluminum. Lithium grease was recommended...
YMMV
The military M16 maintenance manuals I have say to use molybdenum disulfide on the threads. The military sometimes have different reasons for how and why they do things. I wonder who is right. I tend to do things the way the military tech manuals say.