Trey A Posted January 29, 2013 Share Posted January 29, 2013 I am putting a few uppers together, My question is whether to put locktite on the barrel nut . My concern is when it comes time to remove it, I have a good receiver block but I am afraid that the aluminum will give when it comes time to remove it. Also if it is recommended then blue or red ? On one receiver I am putting a JP handguard on it and it says to put red on the adapter and anti-seize on barrel nut side . That's not too bad because I probably won't change the hand guard and will be able to get the barrel out . Is there any point in using the blue ? Or is it pointless ? Any recommendations ? Link to comment Share on other sites More sharing options...
a.roberts Posted January 29, 2013 Share Posted January 29, 2013 Grease on the barrel nut. Only grease. Link to comment Share on other sites More sharing options...
DyNo! Posted January 30, 2013 Share Posted January 30, 2013 Grease on the barrel nut. Only grease. Link to comment Share on other sites More sharing options...
spankymac Posted January 30, 2013 Share Posted January 30, 2013 (edited) I use Permatex 80078 anti-seize Edited January 30, 2013 by spankymac Link to comment Share on other sites More sharing options...
Dan Sierpina Posted January 30, 2013 Share Posted January 30, 2013 I uses Never Seize, on barrel nuts also when screwing a barrel into a reciever. Link to comment Share on other sites More sharing options...
Trey A Posted January 30, 2013 Author Share Posted January 30, 2013 As a mechanic that's what my thought was , if it were to move slightly then the gas tube would "lock" it from going any farther . I don't know where I got the locktite from but glad I had second thoughts. Thanks guys!! Link to comment Share on other sites More sharing options...
MarkCO Posted January 30, 2013 Share Posted January 30, 2013 And nothing on the extension. Some people grease the extension, but it can negatively affect accuracy. Link to comment Share on other sites More sharing options...
Mark Gale Posted January 31, 2013 Share Posted January 31, 2013 And nothing on the extension. Some people grease the extension, but it can negatively affect accuracy. A bit confused... How is it possible to grease a barrel nut and not grease the extension? Link to comment Share on other sites More sharing options...
a.roberts Posted January 31, 2013 Share Posted January 31, 2013 And nothing on the extension. Some people grease the extension, but it can negatively affect accuracy. A bit confused... How is it possible to grease a barrel nut and not grease the extension? The barrel extension. The bit that slides into the upper receiver and has the locator pin in it. Link to comment Share on other sites More sharing options...
MarkCO Posted January 31, 2013 Share Posted January 31, 2013 That's it. Link to comment Share on other sites More sharing options...
Mark Gale Posted February 1, 2013 Share Posted February 1, 2013 I missed the jump from barrel nut to barrel extension. Link to comment Share on other sites More sharing options...
ltdmstr Posted February 1, 2013 Share Posted February 1, 2013 While I don't recommend it, plenty of folks use loctite on the barrel extension and/or nut. For example, if you check Zedicker's AR book, I believe he uses red loctite on both. Not saying it's right or wrong, but there is a reason for doing it. Of course getting everything apart, paricularly with the red stuff, will be quite a project. Link to comment Share on other sites More sharing options...
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