installing an AR barrel to receiver ????

nightboomer

February 18, 2011 15:45

HI I am new to this site and in building my first AR with an 16" barrel, I was wondering when putting the barrel to the upper receiver part is there an torque setting I should use when installing the barrel nut???????????????????????[?]


IF anyone can tell me, Thanks

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  Mobuck

  February 18, 2011 16:05

  Yes there are torque values to use. Check out some of the webvideos for details. A fixture for holding the uppper w/o damaging it is needed as is a barrel nut wrench.

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  Nwcid

  February 18, 2011 16:10

  It is generally considered 35lbs minimum. Torque to 35lbs then index to your gas tube.

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  guntech59

  February 19, 2011 00:40

  quote:Originally posted by Nwcid
  It is generally considered 35lbs minimum. Torque to 35lbs then index to your gas tube.
  
  
  
  
  
  Per Army TM, it is 30 ft/lbs, then torque up to align.
  
  Having the right tools make it MUCH easier.

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  armilite

  February 19, 2011 14:08

  You need a torque and barrel wrench and torque to 30-35 lbs and align the gas tube. That will change the final torque setting as they rarely line up.

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