S&W SD40 Trigger


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Old 12-24-2012, 04:45 AM   #1
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Default S&W SD40 Trigger

My dad has a S&W SD40 that i took apart and cleaned. I thought they have a DA trigger. After in put the side back on and pull the trigger the hammer releases...but then i pull the trigger again the hammer doesn't fall. Am i miss remembering?



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Old 12-24-2012, 04:51 AM   #2
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the sd40 is striker fired.



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Old 12-24-2012, 04:57 AM   #3
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the sd40 is striker fired.
Soooo to sound like a tard....meaning?
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Old 12-24-2012, 08:11 AM   #4
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It is basically a single action with a long heavy pull. When a round is chambered it partially cocks it and the trigger pull fully cocks and then releases the firing pin. It results in a better than double-action only trigger but worse than a single-action trigger.

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Old 12-24-2012, 08:27 AM   #5
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But every pull of the trigger should cause the striker to fall? Even without the slide being moved?

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Old 12-24-2012, 10:07 PM   #6
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The reciprocating action partially cocks the striker. Few striker fired guns allow a second strike on the same cartridge. Many makers call their striker fired guns "double action" or "double action only". To me this is a serious misnomer. The term double action refers to a mechanism that can be fired two different ways; manually cocking (with your thumb) or trigger cocking (think Smith and Wesson revolver). They have used a term familiar to shooters to describe the "feel" of the trigger, when technically it is incorrect.

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Old 12-25-2012, 03:43 AM   #7
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Quote:
Originally Posted by rferguson61
But every pull of the trigger should cause the striker to fall? Even without the slide being moved?
As said it partially cocks when the slide closes after cycling.
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Old 12-25-2012, 12:24 PM   #8
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No ammo , rack the slide ,pull the trigger one time, rack and repeat, again No DA trigger

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Old 12-31-2012, 03:18 AM   #9
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Striker fired pistols are considered DAO. Like the Glock. Personally, I prefer striker fired pistols for self defense use.

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Old 12-31-2012, 03:21 PM   #10
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Striker fired pistols are considered DAO. Like the Glock. Personally, I prefer striker fired pistols for self defense use.
And I think the term DAO is a misnomer. Double Action is TWO actions. DAO is ONE action. It is an attempt to simplify the naming process like calling all Armalite pattern rifles "AR-15's"


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