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Thread: S&W Sigma 40

  1. #1
    einirvine is offline Junior Member
    Join Date
    Mar 2009

    S&W Sigma 40

    I just purchased the Smith Sigma .40. I am doing my gun safety check next week when i pick it up. i have never handled or shot a hammer-less gun. How do i un cock this gun?? Help.


  2. #2
    Todd is offline Banned
    Join Date
    Jul 2006
    1) Drop the mag
    2) Rack the slide numerous times to make sure it is not loaded.
    3) Lock back slide and visually and physically make sure the gun is not loaded
    4) Release slide
    5) Point gun in safe direction
    6) Fire
    7) Your striker fired weapon is now uncocked - although I am a bit confused as to why you need to do it. Long-term storage concerns?

  3. #3
    bruce333's Avatar
    bruce333 is offline HGF Forum Moderator
    Join Date
    Aug 2006
    Wilson's Mills, NC
    E in Irvine...mmmm...
    Quote Originally Posted by einirvine View Post
    I am doing my gun safety check next week when i pick it up.
    is that some of that California mess?
    Bruce, Life Member: NRA, NCRPA, GRNC, GOA

    Naval Air Museum Barbers Point

    "I personally think we developed language because of our deep inner need to complain."--Jane Wagner
    "The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom."
    -Isaac Asimov

  4. #4
    PhilR. is offline Member
    Join Date
    Apr 2007
    Most of the strker-fired guns are not cocked in the first place. It's the rearward movement of the trigger that cocks, then fires, the pistol. This is one reason why most do not have a de-cocker - there is no need to de-cock in the first place.

    I cannot say for certain if your pistol is like a Glock, or more like and XD in the way it's mechanism works.

  5. #5
    DevilsJohnson is offline Senior Member
    Join Date
    Oct 2007
    The sigma is Very "Glock Like" in it's design and function. The one glaring difference is you can feel in a Glock trigger when the trigger is close to releasing the firing pin and with a Sigma is it the same tension until it fires. Especially if you do the striker spring replacement. It was my only beef with the weapon was you didn't know when the trigger was close to releasing the striker unless you were used to firing the weapon. With a Glock you can feel it a lot more.

  6. #6
    ZO6Vettever is offline Junior Member
    Join Date
    Mar 2009
    Key West Fl.
    I have a Sigma and it's a fantastic self defense weapon. Does everything it's made to do, every time, without a hiccup. Long, hard trigger = no Plaxico discharges and nobody will notice the 10# trigger if SHTF!

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