Striker spring question

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dmk0210

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I just bought a new SD9VE and disassembled the gun to clean it. When I removed the striker to verify that it was clean and dry I noticed that it has the heavy striker spring held in by the plastic keepers, but there was also a very lightweight, much weaker spring at the front of the striker pushing it towards the rear.

Well, somehow I got this lighter spring jammed up when I reinstalled and it bent. I took the striker in my SD40VE apart to see if I could 'borrow' that spring for a range test and found that it didn't have one. It just had the main striker spring.

Is that lighter spring even needed? I got my SD40 used and it must have not had it when I got it. I haven't had any problems with it in the approximately 700 rds I have put through the gun.
 
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I don't know how to answer you, because I don't know what you're talking about. I've owned several SD9VEs and one SD40VE, and in all of them the RSA was a captured unit, with the striker spring held between the cups and there wasn't a smaller spring.

I'm attaching an Apex video where changing out the spring is shown (simply because I don't have any pictures of my SD9VE) and there isn't a second spring shown, or that I can see.

Was yours loose? Attached in some way? Could it possibly have been an extraneous part that somehow found its way into your gun?

[ame="https://www.youtube.com/watch?v=atOw-1FoJV4"]https://www.youtube.com/watch?v=atOw-1FoJV4[/ame]
 
The second spring is only accessible once you take the striker assembly apart. It is there on my 40. Damned if I can figure out what it does.

Does have me curious now though. I might give S&W a call on Monday and see.. if I can remember.

Doc
 
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Dr Denby said:
The second spring is only accessible once you take the striker assembly apart.
Click to expand...

Ah...well, I've never taken my striker apart. Just took it out and cleaned it, and put it back in, still assembled.

Where is it, based on the Apex video?
 
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It can't be seen on the video, but after you get the striker spring off, the striker comes out of the white plastic sheath, and the second spring is on the striker shaft (hidden by the white sheath, when assembled)

Doc
 
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Looks like the question is about a STRIKER SPRING. All the replies are about a RECOIL SPRING ASSEMBLY. Different animals all together.
 
I have been talking about the striker and its springs, Joe . I have not mentioned recoil at all.

Doc
 
Last edited:
Dr Denby said:
It can't be seen on the video, but after you get the striker spring off, the striker comes out of the white plastic sheath, and the second spring is on the striker shaft (hidden by the white sheath, when assembled)

Doc
Click to expand...

Thanks...I understand now.

Ole Joe Clark said:
Looks like the question is about a STRIKER SPRING. All the replies are about a RECOIL SPRING ASSEMBLY. Different animals all together.
Click to expand...

That was my fault...I mistakenly typed "RSA" in my post above when I meant striker. I edited my post above. :o
 
Thanks for the replies guys. :)


Dr Denby said:
It can't be seen on the video, but after you get the striker spring off, the striker comes out of the white plastic sheath, and the second spring is on the striker shaft (hidden by the white sheath, when assembled)
Click to expand...

When you say plastic sheath, do you mean the one with the slot in it at the rear (that holds the rear cap on)?

So is the small spring supposed to push the striker towards the muzzle or towards the rear of the gun?

I was assuming that in went in the channel (towards the chamber) first before the striker went in to push the striker towards the rear and act as resistance to the gun dropping on the muzzle.

I tried Google searching but can't find a picture or diagram showing the smaller spring anywhere.
 
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Yeah, the white plastic sheath.

Like I said, I have no idea what the spring does. It's position does not suggest any useful function. And you said your 40 shoots fine without it. My 40 has it, but I am not going to experiment by taking it out.

I am curious. I am going to call S&W in the morning and see if they will tell me.

Will let you know.

Doc
 
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I just had my sd9Ve striker pin assembly out to clean it as I'm having failure to fire all too frequently and did not see a second spring
Norm
 
I would go to YOU TUBE and search for a video of complete disassemble of your specific gun.
 
There isn't one, Louchia

The best one is the Apex one that GKC posted.. and that does not show the striker shaft itself being pulled out of the plastic sheath to show the second spring.

It also doesn't show the sear disassembly.


star1 said:
I just had my sd9Ve striker pin assembly out to clean it as I'm having failure to fire all too frequently and did not see a second spring
Norm
Click to expand...

Did you take apart the striker assembly completely Norm?
 
Dr Denby said:
The best one is the Apex one that GKC posted.. and that does not show the striker shaft itself being pulled out of the plastic sheath to show the second spring.
Click to expand...

There used to be a commercial that said "Reading comprehension is vital" (or something to that effect.) After reading your post, and thinking it said that the Apex video DID show the shaft being pulled out and the second spring was visible, I watched the video several times. THEN, after NOT seeing the spring, repeatedly, I came back and read your post again, and the light bulb went on...I realized you said it DID NOT show the second spring. :o

Duh.
 
I can't tell you how many times I have done that, GKC.

And sometimes it's not just one word either.. I have gone back to something and realized what the hell, I wasn't even close!

Doc
 
Well, I went out and shot the 9mm without the second spring. I put about 400 rounds through it and no problems.

Neither gun has that second spring now and both work fine.

Why it was there in the first place is still a mystery. Dr Denby, if you do find out from S&W, I'd love to know what they say.

Thanks again.

Dave
 
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I didn't take it completely apart, I did pull out 2 plastic sleeves
Not sure when I'll get back to the range to see if cleaning it made any difference
Norm
 
ok, you ready for this? I can't believe I am actually saying this..

Smith & Wesson technical support and their smiths have no idea what that second spring is for.

And get this, their schematics don't even show a second spring. They know it is there because they have taken it apart and worked on the gun, but their diagrams that they have don't even show it.

I thought they had me talking to a mail clerk or something this sounded so incredulous, but no I spoke to a couple levels, same answers.

Go figure.

Doc
 
That's crazy. :o

It sounds like it was added late in the design to pass some safety test and they never updated their diagrams.
 
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