1911 front sight shifting

Discussion in '1911 Gunsmithing' started by Shocker2000, Apr 14, 2019.

  1. Shocker2000

    Shocker2000 Well-Known Member

    Apr 6, 2016
    I have a dovetail front sight that keeps shifting after my 1911 was refinished. I tried some green loctite this time, and it still shifted.

    Should I use a punch to put a dimple in the bottom of the sight to stretch the metal a bit for a tighter fit?
    [​IMG]

    [​IMG]

    I could also try red loctite.

    Other than just replacing the sight, any other ideas?
     
    Last edited: Apr 14, 2019
  2. fieldgrade

    fieldgrade resident crank

    Mar 13, 2017
    Clean the base of the sight and the dovetail really good with alcohol, and re-apply Loctite 620 (green). I had one come loose the first time with the green, and when I cleaned it up again, reapplied, and let it sit for a day or two, it has held fast through several thousand rounds of match shooting.
     
    Shocker2000 likes this.

  3. Integrity Arms

    Integrity Arms 1911 Pistol Smith

    Mar 20, 2017
    I would use red loctite
     
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  4. Shocker2000

    Shocker2000 Well-Known Member

    Apr 6, 2016
    I did exactly this procedure last time. Cleaned up base really good with light sandpaper, cleaned with alcohol, added a fair amount of green loctite, let it sit more than a week. Loosed up with just one mag.
     
  5. Shocker2000

    Shocker2000 Well-Known Member

    Apr 6, 2016
    No need to add some punch strikes to the bottom?
     
    Steve Owens likes this.
  6. BigJimP

    BigJimP Well-Known Member

    Mar 12, 2018
    I have had same issue in past ....and red locktite fixed it .
     
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  7. Integrity Arms

    Integrity Arms 1911 Pistol Smith

    Mar 20, 2017
    I wouldn't think that you would need to stake it in any way. The red loctite is much stronger than the green or blue is.. Put a good bead under and in the dove cuts as well and just wipe out any excess..
     
  8. fieldgrade

    fieldgrade resident crank

    Mar 13, 2017
    I believe the red 262 that Dawson ships is actually not as strong as the Green 620 that they also ship.
     
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  9. Karsten

    Karsten Well-Known Member

    Feb 19, 2013
    Red Locktite and make sure is is right the 1st time as you wont get a second chance unless you can heat it up.

    I wouldn't try to stake it myself.

    Karsten
     
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  10. Integrity Arms

    Integrity Arms 1911 Pistol Smith

    Mar 20, 2017
    I just buy the reg loctite, don't get it from the sight places. Have always come to rely on the red, even use it on ejectors.. Once that stuff sets up 99 out of a 100 I'd say it's a done deal. Not much experience with the green as I've never used but the blue or red myself.
     
    Shocker2000 likes this.
  11. shootin-blanks

    shootin-blanks Well-Known Member

    492
    Jan 27, 2015
  12. Shocker2000

    Shocker2000 Well-Known Member

    Apr 6, 2016
    I put a couple of dimples on the underside to stretch the metal a little, lightly sanded to clean off the bottom, cleaned sight and dovetail, and used RED loctite on the sight and dovetail.

    Guess I'll find out next time I shoot it. My wife's comment last night at the range was something like, "For a 1911, it's not very accurate. That's really strange for a 1911." Checked it this morning, front sight had drifted way to the right.
     
    Last edited: Apr 14, 2019
  13. fieldgrade

    fieldgrade resident crank

    Mar 13, 2017
    From Dawson Precision-

    The 620 they refer to is the green. The 262 is the red...

    For All Dovetail Front Sight Installs
    The Loctite 620 high temperature retaining compound
    "Loctite 620" is what we use on all dovetail front sight installs.
    Do not use on screw on front sights such as Glock, trust us.
    Do not use it on rear sight installs as it makes it hard to tap rear sight for windage adjustment.

    -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    For All Rear Sight and Screw On Front Sight Installs
    Loctite 262 Threadlocker
    "Loctite 262" is what we use on all dovetail rear sight and all screw on front sight installs.
    It can also be used on well fit dovetail front sight installs, but is not impervious to gun cleaners like Loctite 620.
    Use it on rear sight installs as it makes it possible tap rear sight for windage adjustment, and use very small amount on set screws so they can be loosened to adjust.
     
    Shocker2000 likes this.
  14. tac45

    tac45 What me worry ? Supporting Addict

    Mar 4, 2012
    A common problem addressed in the TTT gunsmithing catalog.
    @Kip and his staff worked diligently to resolve this situation
    Finally, they stumbled upon the cure. !

    C58C46EB-9A46-4EBD-8F2A-B892F26A61A0.jpeg
    C4A451A7-CBA8-4FBE-93BD-AF8963FEB570.jpeg
    Send cash
     
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  15. Kip

    Kip Sir Kip Esquire

    Apr 12, 2016
    Works like "snot on a sight".
    One of granpappy Tarzan's old sayings
     
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  16. Shocker2000

    Shocker2000 Well-Known Member

    Apr 6, 2016
    Reminds me of a saying my grandpa used to use "Slicker than snot on a doorknob."

    This thread is now...
    [​IMG]
     
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  17. Integrity Arms

    Integrity Arms 1911 Pistol Smith

    Mar 20, 2017
    Nothing on earth stickier than goriila boogers man.. And according to about every Gorilla I have ever seen nothing tastier lmao...
     
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  18. Kip

    Kip Sir Kip Esquire

    Apr 12, 2016
    Figured all the good answers were already taken ;)
     
    tac45 likes this.
  19. isialk

    isialk Well-Known Member Supporting Addict

    Jan 7, 2017
    Jeez! I’m every bit as dumb as my wife says! Never even heard of all these crayola colored locktites. If I ever have this problem I hope I can send the gun to one of you bugger eaters for repairs lol!


    Sent from my iPhone using Tapatalk
     

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