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Ruger Mk-III Hunter Loose Front Sight

Fairlane66
I have a Ruger Mk-III Hunter, the stainless steel version with the long fluted barrel and factory sights. Everytime I fire this pistol, the front sight works loose. Has anyone else had this problem with the Mk-III Hunter? What can I do to anchor the front sight in place? I've heard clear fingernail polish on the retaining screw will do the trick. I don't want to use anything that'll permanently weld it in place, so is there anything I should avoid? Would appreciate any advice. Thanks.
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Comments

8 comments

Date Votes
  • tsr1965
    I would use some Loctite 609. It is a clear dark green in color, and a medium strength thread locker. It can be removed without heat, but the proper sized screw driver is a must. I personally have used it in the past, but now use the red 242 of high strength. So what if I have to hit it with a Burnz-O-Matic for a few seconds to get it out.

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  • beantownshootah
    +1 to loctite on the retaining screw.

    Cheap and non-permanent.

    I'd start with the ordinary blue stuff before moving onto the more sticky green (and personally I wouldn't use the red for this particular application).
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  • 45forme
    I have a stainless MKIII w/target sights that had the same problem. I used the blue (medium) loc-tite and it worked for me.
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  • William81
    Lost the first front sight on my Ruger MKII almost 20 years ago. When I replaced it...Loc-tite. Still holding after all these years and about 30,000 rounds
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  • edharold
    I would send it to the factory. Ruger is fairly quick in returning guns and you bought a new gun so it should be in perfect condition, not some make do home repair.
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  • tsr1965
    quote:Originally posted by edharold
    I would send it to the factory. Ruger is fairly quick in returning guns and you bought a new gun so it should be in perfect condition, not some make do home repair.


    That "make do home repair", is the same repair a professional gunsmith, or Sturm, Ruger & Company would use if you sent it back.

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  • Don McManus
    Another vote for blue Loctite. Had the same problem with a Coonan shooting 357 Mag. 2,000 rounds (appx) later, its still there.
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  • dcs shooters
    Use blue Loctite or fingernail polish. Both work about the same.
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