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Thread: Stubborn barrel nut

  1. #21
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    Re: Stubborn barrel nut

    Quote Originally Posted by E-man930 View Post
    I had a 20" brand new upper I pulled apart and it was impossible not to damage the receiver, the nut was on what felt like over 200ft/lbs of force. Sometimes you end up loosing the battle when someone ahead of you screwed the pooch during assembly.
    Yep. Unfortunately, I lost this battle. The upper is on the way back to the manufacturer for inspection. Pending their response, I'll update the thread appropriately.

  2. #22
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    Unfortunately in some cases the barrel nut will get stripped of the wrench will fail. Or you will damage the upper as it happened here. This is why I opted not to tempt fate and I cut it off. 7.00 nut vs. 100.00+ upper.



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  3. #23
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    Re: Stubborn barrel nut

    Quote Originally Posted by Iraqgunz View Post
    Unfortunately in some cases the barrel nut will get stripped of the wrench will fail. Or you will damage the upper as it happened here. This is why I opted not to tempt fate and I cut it off. 7.00 nut vs. 100.00+ upper.
    Lesson learned! I should have stopped what I was doing and asked you before screwing it up.

  4. #24
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    Matt, hate that it happened to you like this...good learning experience, though, I guess. Since it was twisting in the receiver block, I cannot really say much, but I do think this lends a bit of credence to my theories about the GRR...not that I still wouldn't like to have one and I do believe it's a useful tool...I just look at the forces present in that situation and think that there ought to be a combination receiver block and reaction rod type tool that would work for everything.

    IG...do you have PM's turned off? I sent you one looking for some pin data and didn't hear back.
    Semper Paratus Certified AR15 Armorer

  5. #25
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    I get dozens of PM's per day, not to mention emails, etc.. What pin info did you need?

    Quote Originally Posted by ASH556 View Post
    Matt, hate that it happened to you like this...good learning experience, though, I guess. Since it was twisting in the receiver block, I cannot really say much, but I do think this lends a bit of credence to my theories about the GRR...not that I still wouldn't like to have one and I do believe it's a useful tool...I just look at the forces present in that situation and think that there ought to be a combination receiver block and reaction rod type tool that would work for everything.

    IG...do you have PM's turned off? I sent you one looking for some pin data and didn't hear back.



    Owner/Instructor at Semper Paratus Arms

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  6. #26
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    Quote Originally Posted by Iraqgunz View Post
    I get dozens of PM's per day, not to mention emails, etc.. What pin info did you need?
    I'm sure man, wasn't mad. I was looking for a list you mentioned in the McDonough class of roll pin sizes for the AR15 so they could be purchased through McMaster-Carr.
    Semper Paratus Certified AR15 Armorer

  7. #27
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    Re: Stubborn barrel nut

    Quote Originally Posted by ASH556 View Post
    I'm sure man, wasn't mad. I was looking for a list you mentioned in the McDonough class of roll pin sizes for the AR15 so they could be purchased through McMaster-Carr.
    Send me a copy when you get it! I was just looking for this.

  8. #28
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    Pin sizes

    Quote Originally Posted by ASH556 View Post
    I'm sure man, wasn't mad. I was looking for a list you mentioned in the McDonough class of roll pin sizes for the AR15 so they could be purchased through McMaster-Carr.
    Hey Josh, I found this a while back on Biggerhammer.

    http://www.biggerhammer.net/ar15/pins.html

  9. #29
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    Update: the upper was sent in to BCM for inspection by the owner of the upper. After a few questions on the disassembly and the issue encountered, they requested that he go ahead and send it in. BCM turned it around and had it shipped back within a couple of days. There was no notation regarding what work was performed. A visual inspection by the owner indicates that the upper receiver was replaced and the upper was rebuilt by BCM using the original barrel and the new rail. Everything appears to be in working order and will be test fired later this week. Kudos to BCM for going above and beyond for replacing the upper receiver and turning it around in an exceptionally short timeframe.

  10. #30
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    Fantastic mtdawg. Paul is hard to beat when it comes to taking care of his customers.

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