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Thread: Another potentially dumb question about Rocksett...

  1. #11
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    Quote Originally Posted by TRIDENT82 View Post
    Yes, it will come loose surprisingly fast.
    Darn. Well, thanks buddy. =)

  2. #12
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    Quote Originally Posted by Skyyr View Post
    Darn. Well, thanks buddy. =)
    No problem....I was in your same boat awhile back when I first got the spr/m4 blackout for the 18" SS SPR barrel. I tried it numerous times with just torque and after 20-30 rds down the tube, it was loose every time....eventually I had to break out the rocksett.

  3. #13
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    Quote Originally Posted by Skyyr View Post
    This is what I want to avoid. Now I know Rocksett can be used safely, but I'd rather avoid it. So... is there anything wrong with simply torquing it on without a washer or Rocksett?
    Are going to mount a supressor? If not, just use a crush washer and be done with it, no worries. If you are planning on using it surpressed, follow Grant's advice and only use one drop + the appropriate number of shims to clock it. Obviously you want to have the timing figured out before you apply rocksett to the threads.

  4. #14
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    Quote Originally Posted by Skyyr View Post
    Ok, here's another question then: is anything (i.e. Rocksett, washers) even required if I'm not going to use it as a suppressor mount? If it doesn't require a crush or peel washer with Rocksett, would it require them without it, provided it was torqued correctly?
    Sorry, just re-read this. You will need some form of washer to keep it on there & a crush washer will be the easiest to install / time correctly. Plus, it will be easy to remove later as well.

  5. #15
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    I like Grants advice. Mine was for locked down good for a suppressor. Definitely soak for 24hrs - had the same issue - many drops and torqued down too good. Took quite a but got it off.
    Glocks are functional tools and nothing else, hence they have no soul - Rob S.

  6. #16
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    Quote Originally Posted by mtdawg169 View Post
    Are going to mount a supressor? If not, just use a crush washer and be done with it, no worries. If you are planning on using it surpressed, follow Grant's advice and only use one drop + the appropriate number of shims to clock it. Obviously you want to have the timing figured out before you apply rocksett to the threads.
    You do not time blackouts. You also can not use crush washers.
    Last edited by ALCOAR; 07-30-10 at 21:15.

  7. #17
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    Quote Originally Posted by TRIDENT82 View Post
    You do not time blackouts. You also can not use crush washers.
    Why not? If he's not running a supressor, why does it matter exactly? Concentricity is not a concern , so what would be wrong with using a crush washer?

    Disregard my comment about timing, I was thinking about the brakeout. Blackout does not require anything but torquing it down as Trident mentioned.
    Last edited by mtdawg169; 07-30-10 at 22:47.

  8. #18
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    You can use washers or shims to time a blackout for cosmetic reasons. It's not going to hurt anything to use them but there is no need for them otherwise.

    On a precision rifle I would rather use a couple drops of rocksett and install the blackout to hand tight than rely on torque to keep it in place. There are different schools of thought on how much affect the torque from a properly installed muzzle device has on accuracy. Personally I think the least amount possible is best.

    If you install the blackout to 20-30 lb-ft of torque per the instructions it's probably not going to go anywhere whether you use rocksett or not. A crush washer is supposed to crush at 25 lb-ft of torque, so I'm not sure how it would be any benefit over using the correct amount of torque to begin with.

  9. #19
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    Skyyr, I posted this question in the AAC forum on ST to get an answer from the horses mouth for you. It has always been my understanding that for non-suppressor use, a crush washer is fine, but I don't want steer anyone wrong here.

  10. #20
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    Fwiw, my noveske upper was shipped with an aac blackout. When replacing it I noticed no rocksett just a LOT of torque and shims for cosmetic timing.
    Mark

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