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Posted: 1/1/2004 11:52:57 PM EDT
[#1]
thats about what i do and i havent had a problem yet and yes the head space on a ar should be fine YMMV
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Posted: 1/2/2004 1:45:07 AM EDT
[#2]
Should be good.
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Posted: 1/2/2004 4:10:29 AM EDT
[#3]
the TM says to torque to 30 ft-lbs 3 times (with moly lube) on the 3rd time you can go as high as 80 ft-lbs in order to get the notches aligned for the gas tube. tightening the barrel nut does not affect headspace.
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Posted: 1/2/2004 5:04:04 AM EDT
[#4]
I have taken apart uppers that I have been shooting and the barrel nut was only hand tight. I do not even worry about torque specs. Tighten it and do just like you said.
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Posted: 1/2/2004 6:25:25 AM EDT
[#5]
what i did is set my torque wrench at 80 ft/ lbs , once it did not align with the gastube loosen the barrel nut a little
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Posted: 1/2/2004 7:00:46 AM EDT
[#6]
Whether you're in the strict tighten-3-times or the tighten-till-it-lines-up school, I think loosening the nut to get alignment is a bad idea. If you have to back off, back off all the way, then tighten to alignment.
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Posted: 1/2/2004 1:54:59 PM EDT
[#7]
What is all the equipment necessary to do barrel work? I bought a large hole upper and i'm gonna move the parts from my m4 upper over to it. What all do I need? Armorer's block, barrel wrench, what else?
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Posted: 1/2/2004 2:36:44 PM EDT
[#8]
Quoted: What is all the equipment necessary to do barrel work? I bought a large hole upper and i'm gonna move the parts from my m4 upper over to it. What all do I need? Armorer's block, barrel wrench, what else? You have to get the gas tube out of the way somehow. You can either 1) use a roll pin punch to remove it from the gas block, draw it back into the upper enought to clear the gas block, and then pull it clear or 2) use standard (or even better, concave) punches to remove the front sight base and pull it clear with the gas tube. If all you're doing is swapping the barrel assembly, you should be set. |
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Posted: 1/2/2004 10:48:26 PM EDT
[#9]
Quoted: Quoted: What is all the equipment necessary to do barrel work? I bought a large hole upper and i'm gonna move the parts from my m4 upper over to it. What all do I need? Armorer's block, barrel wrench, what else? You have to get the gas tube out of the way somehow. You can either 1) use a roll pin punch to remove it from the gas block, draw it back into the upper enought to clear the gas block, and then pull it clear or 2) use standard (or even better, concave) punches to remove the front sight base and pull it clear with the gas tube. If all you're doing is swapping the barrel assembly, you should be set. I just did that that. I did it the hard way but Tweak had some good advice on how to remove the gas tube the easy way: [url]www.ar15.com/forums/topic.html?b=3&f=118&t=177367 [/url] |
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