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S&W .40 Sigma trigger problem

Discussion in 'Gunsmithing and Repairs' started by confinedbythecurtain, Dec 6, 2004.

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  1. confinedbythecurtain

    confinedbythecurtain Member

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    My dad has a Sigma and the trigger is so darn hard to pull. Is there any kits or services that would remedy the problem? :uhoh:
     
  2. mrapathy2000

    mrapathy2000 member

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  3. jim-alex

    jim-alex Member

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    If the Sigma trigger seems to be growing harder to pull as you use it, not just its normal 8 - 10 lbs, I mean really heavy - you may need to use a good solvent under pressure to blast out the firing pin hole. The older Sigmas had a problem of allowing crud into the firing pin hole such that the striker mechanism gets blocked. If this is the problem, a few blasts with compressed air will clear it.

    Jim
     
  4. Jim K

    Jim K Member

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    I got a .40 Sigma early on, and never did figure out how to get any accuracy out of it. The gun seems to shoot OK so far as barrel, etc., but I never was able to control the "twitch" when the firing pin releases. I never had that problem with the original version, which is called the Glock.

    Jim
     
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