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  1. #1

    Default Robinson Arms barrel and locktite

    brought my rifle to the range and everything was going great and then things went downhill fast. The fastening bolt came loose so tightened it up and POI was way off. When I got home I put some red locktite on it, haven't had a chance to see if it works. I have since found out maybe I shouldn't have, did I screw my rifle up?

  2. #2
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    Are you saying your barrel nut came loose, and you put Red Loctite on the threads? Normally you have to use heat to break Red Loctite loose after it sets.

  3. #3

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    Yes and I found out after that the bolt threads into a coil which also has factory loctite on it.

  4. #4
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    Doesn't that use an Allen Bolt to hold the barrel in? I have not used one of their rifles and not familiar if they have a problem with that bolt coming loose or not. I believe I would have called Robinson Arms before I applied red Loctite to it.
    Last edited by semi_cop; 08-28-2013 at 09:33 PM.

  5. #5

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    Yes it is a allen bolt but the allen bolt screws into a heli coil in the reciever and that's what holds the barrel, I tightened the bolt several times at the range and it would come loose after a couple of10 round mags. Factory specs call for 200 ft. in. of tourque. I can't change what's already done, I hope it does'nt back out the coil or give me grieve if I want to change out the barrel.

  6. #6
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    You might be in for a fight and you might not. If the loctite dripped into the thread interface of the helicoil and the recover it just locked the helicoil in place.

    If it is on the helicoil and the bolt you will probably back the helicoil out with the bolt. It will need replaced and that isn't hard.

    If it is on both with equal grip you will have a fight on your hands. It will probably require heat and patients and you will probably end up pulling the bolt and helicoil out together.

    Be careful, go slow, and next time use BLUE loctite or replace the helicoil and bolt.



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  7. #7
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    Another option would be to contact Robinson Arms yourself and own up to your mistake (if it turns out to be one) and see if there's anything they'll do. You can usually get pretty lenient CS for situations like this from small business.

  8. #8
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    You did exactly what I would have done, a little heat will help get them out if you ever need too....

  9. #9

    Default

    I have a Robarms 5.56 and the bolt screw doesn't screw into a helicoil. The bolt is pointed and screws into a depression in the barrel. It does take 200 inch lbs for proper tighting. I bought a torque wrench from Harbour Freight for $10 and have a socket with a piece of the correct size allen wrench glued into the socket. It has never loosened up.

  10. #10

    Default

    I have an XCR in 6.8 and I use blue Loctite. It seems to do the trick. FYI there is a lot of great info for your rifle on the XCRforum at www.xcrforum.com


 

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