Looking on the internet people
have said there are problems with barrel nut locking up to the upper receivers.
The problem is dis-smellier metals! It does not matter which you chose copper
and steel, aluminum and steel, etc. when they touch there is an electron
exchange and corrosion begins and an untreated spark plug can fuse itself in an
aluminum head. It seems the auto industry has already solved this problem. Mechanics
have for years have had to deal with this but now they do not! At an auto parts
store you will find small packets of a product specifically made for this
purpose at Autozone it is called Anti Seize and sold in a small package for
about a buck and should do one gun, For AR builders Napa it is called Anti Seize they sells an 8oz. bottle for
$9 and a 16oz bottle for a little under $25. . If
you have nothing else automatic transmission fluid works on car spark plugs works reasonably
well and should work on an AR too.
Richard W. Norman author of
American Handbook on Guns Ammo and Freedom
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