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Posted: 8/1/2014 7:48:31 PM EDT
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Reading everywhere and archives that state 30-80 ft lb. set your torque wrench to 35 was a common number
Here's my setup Midwest industries rail going on a dpms upper new and unfired At 35ft lb. I am dead on with the gas tube clocking Retorqued several times and still come up on the money without torquing further than 35 It makes me paranoid that it was that easy 
To further torque to the next alignment hole for the gas tube I would be well over 80 ft lbs. What does more experienced arfcommers think? |
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Reading everywhere and archives that state 30-80 ft lb. set your torque wrench to 35 was a common number Here's my setup Midwest industries rail going on a dpms upper new and unfired At 35ft lb. I am dead on with the gas tube clocking Retorqued several times and still come up on the money without torquing further than 35 It makes me paranoid that it was that easy
To further torque to the next alignment hole for the gas tube I would be well over 80 ft lbs. What does more experienced arfcommers think? I have one like that. A Colt 6920 that I replace the barrel with a Colt 6921 SOCOM 14.5. Went on like a dream. Don't complain about a good dream. |
| 30-80 means what it says. You only need to torque enough to achieve these specs and get the gas tube notch to align. One other note. Suppose you cannot get the gas tube notch to align with in these specs you can face the receiver with a flat file enough to remove the annodization and it should be able to align after that. |
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Went on like a dream. Don't complain about a good dream. Quoted:
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What does more experienced arfcommers think? Went on like a dream. Don't complain about a good dream. Gotcha So used to wrenching on things with a set torque spec that a broad torque range threw me off |
| For the record the BR guys stick as low as is necessary on the torque. The more you tighten it the more potential for warp you induce, especially as the system heats. Stay as close to 30 as possible. Hell, mine may be even less, but they all shoot like a dream, FWIW |
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