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Thread: URXII loose. How do I tighten it?

  1. #11
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    Quote Originally Posted by mtdawg169 View Post
    First time I've heard of this happening. Is this a KAC rifle or a upper built up with a URX? If so, who installed it?
    Pretty common.


    C4

  2. #12
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    Quote Originally Posted by kdcgrohl View Post
    Casey is now a KAC employee. I believe the new Lawmen's contact is Troy.
    Correct. However, I don't think Lawmens will be doing rail installs any longer. I've been told that their gunsmith is no longer there. If its a KAC complete upper, call KAC. If not, I'd contact Neil at Gun Gallery. I'd recommend Grant too, but I don't think he has the time these days. ;-)

  3. #13
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    If you're near Northern VA I own the KAC alignment block and URX wrenches as well. I own two URX II rails and two URX III rails myself.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  4. #14
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    Quote Originally Posted by Robb Jensen View Post
    If you're near Northern VA I own the KAC alignment block and URX wrenches as well. I own two URX II rails and two URX III rails myself.
    Robb, I didn't realize you guys did URX work as well. Any URX III's in stock?

  5. #15
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    Quote Originally Posted by mtdawg169 View Post
    Robb, I didn't realize you guys did URX work as well. Any URX III's in stock?
    We don't sell nor stock KAC rails, I'm just capable of working on them.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  6. #16
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    Quote Originally Posted by C4IGrant View Post
    Pretty common.


    C4
    yikes...does anyone have the install instructions for the new URX II, as the only one I ever seen is with the old nut and tube wrench. I believe the newer nut has a lower torque? Any pointers from the pros who have done many installs to minimise this happening?

  7. #17
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    Quote Originally Posted by hori View Post
    yikes...does anyone have the install instructions for the new URX II, as the only one I ever seen is with the old nut and tube wrench. I believe the newer nut has a lower torque? Any pointers from the pros who have done many installs to minimise this happening?
    I have installed many of them. You basically have to red loctite the barrel nut onto the receiver. I think where people make an error is not FULLY degreasing the receiver and the nut OR shooting the gun too soon (not letting the loctite dry).

    IMHO, this rail is much more likely to come loose than most other rail on the market. So when getting one installed, I would suggest the factory OR an armorer that will fix it if/when it comes loose.




    C4
    Last edited by C4IGrant; 09-09-11 at 11:19.

  8. #18
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    Quote Originally Posted by Robb Jensen View Post
    We don't sell nor stock KAC rails, I'm just capable of working on them.
    And doing a kick-ass job on them.

  9. #19
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    Quote Originally Posted by C4IGrant View Post
    I have installed many of them. You basically have to red loctite the barrel nut onto the receiver. I think where people make an error is not FULLY degreasing the receiver and the nut OR shooting the gun too soon (not letting the loctite dry).

    IMHO, this rail is much more likely to come loose than most other rail on the market. So when getting one installed, I would suggest the factory OR an armorer that will fix it if/when it comes loose.




    C4
    Noted.
    Thanks for the install tip C4

  10. #20
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    Thanks for all the responses.

    It's a BCM built 11.5" upper receiver that I bought directly from BCM. I installed a BattleComp on it last year, but had to remove it and have it replaced. I re-installed the replacement BC 2.0 with a crush washer, and timed it per the instructions I found in a thread on here.

    I had no idea it was dangerous to shoot. I just figured the rail needed to get torqued back down. Luckily I haven't had time to go to the range since I noticed it. I've only put three mags through it since I installed the BC 2.0.

    Will BCM repair it, or should it go to a third party?

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