Grease instead of MOs2 on receiver extensions

[andy t]

Is it ok to use grease on receiver extension threads instead of Molybdenum Disulfide in an anti-seize capacity?

[esskay]

Don't know the answer to that, but milspec grease is easy to purchase online:
http://www.skygeek.com/5067068.html

Note that this is a 14oz cartridge of grease for $11. That's a lot of friggin' grease for building ARs, if you got a buddy (or 10, or maybe your local gun club!) you can all go in on it!