SD_VE trigger reset, wrong assumption

ou1954

ou1954

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I think that in several posts I have indicated that I believed that the striker was partially cocked during recoil.

I believe that was incorrect and maybe one quick response will let this thread die quickly.

I now believe that recoil does not do anything to the striker and that the "sear" engages the striker lug only after the trigger is released "reset" after the gun is fired. There is clearly a click as the trigger moves forward after releasing the striker, and all of the work done to ready the striker is done when the trigger is pulled.

This is a little hard to demonstrate while dry firing my CA gun because the magazine has to be in for the gun to fire. So, to do the test, I have to dry fire it, rack it again, and while holding the trigger back, release the slide lock. Releasing the trigger then results in a distinct click when the "sear" rides over the bevel on the back of the striker lug.

I should have known this some time back, the first time I took the gun to a range, an outdoor range. It had some nice 4" steel disks on arms and they spun around when you hit them. I decided to see how fast I could fire the gun, but sometimes it didn't fire when I pulled the trigger . . . Reason, I wasn't letting the trigger reset!

My apologies wherever I may have posted incorrectly and just one answer should close this thread.

Thanks,

DAW

===========================
I may have to apologize. I couldn't sleep so I did more tests.

It does appear that the striker is indeed partly set during racking or recoil. The positions of the striker lug and the sear, with the slide off, seems to show that they have to be engaged after a recoil. When relaxed they are far from overlapping. That doesn't explain the reset "click" so someone will have to help me understand what's going on. (I did once understand that the Glock has a partial striker pre-set feature).
 
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The striker does or should engage the sear when the slide comes forward after firing. That click is the trigger bar re-engaging the sear. The striker on the SD is partially cocked just like a Glock. Pulling the trigger completes the cocking.
 
But on a Glock, I think the striker is fully cocked. The trigger just releases it. The SD is partially cocked, resulting in he heavier trigger pull. Get reset on the SD trigger is pretty much all the way forward.

L8R,
Matt
 
AnthemBassMan said:
But on a Glock, I think the striker is fully cocked. The trigger just releases it. The SD is partially cocked, resulting in he heavier trigger pull. Get reset on the SD trigger is pretty much all the way forward.

L8R,
Matt
Click to expand...

No, the Glocks are partially cocked strikers. Though they do have a better trigger out of the box.
 
Thanks everyone. Great answers to a somewhat stupid question.

On the other hand, in my defense, I like to know how things work but could come up with two different answers. Also, I had recalled the Glock info and that influenced me.

I will still have to rationalize what happens when I look at the position of the key elements with the slide off.

Maybe, as a minimum, this short thread will be of interest to other owners.

Thanks again,

DAW
 
Well, one more question. I can accept the fact that the click you hear and feel when the trigger reset happens is caused by the sear riding up (down with respect to the earth) and over the ramp on the striker lug, makes sense.

Now my question. In looking at the parts with the slide off, there is a considerable distance between the resting position of the sear and the striker ramp.

So, once the gun is cocked and ready for a trigger reset, what holds the striker (and it's lug) in a position where the sear can ride over and sit down in front of it for final cocking?

I do see a linear cam on the inside of the slide and it might be involved in all this but I really don't know what it does.

[It's sort of like my engineering days. I had some antenna guys in my group and although I could communicate with them and do simple antenna things myself, when it came to more exotic things I always told them they were dealing with "black magic".]

I hope I haven't ran you guys to the point of exasperation. I have seen the Glock animation, which is neat, but some of the finer details of striker loading aren't clear, even there. Help-
 
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When the gun fires and the slide moves rearward the disconnect arm rides across that little hump on the slide and causes the sear to move forward so it is ready to catch the striker lug when the slide locks back up. If you take the slide off and pull the trigger, push down on the disconnect arm and you will see the sear jump forward. As you release the trigger you will see the small ramped part of the trigger bar move forward and resetting on the sear. That is the click that you hear.

Bill
 
With the slide off push down some on the prong that rides over the striker disconnect, then pull the trigger.

Then lift your finger off of the prong and release the trigger, you'll get the idea of how it works.

3
 
3hounds said:
With the slide off push down some on the prong that rides over the striker disconnect, then pull the trigger.

Then lift your finger off of the prong and release the trigger, you'll get the idea of how it works.

3
Click to expand...

Absolutely -- great advice.
 
What I was finally able to see is that if the trigger is not released after the gun is fired or the slide is racked, the trigger bar does not re-connect to the sear, however, the sear is once more holding the prong on the striker in a partially set position.

That is the mystery I couldn't solve, just exactly what was holding the striker back.

I now see that what happens when you let the trigger do a "reset" is that the linear cam on the slide lets the trigger bar pop up and once more engage the sear which is still holding the prong on the striker. That little pop up (click) is what you feel and hear as the "trigger reset".

The sear itself is what is holding the striker back, it just can't be activated until the trigger link is released to re-connect with it.

I was wrongly looking for some magic holder and there is none, it's the sear all the time!
 
brchambersjr said:
ou1954, That is correct.

Bill
Click to expand...

Thanks - I still don't how the sear gets back up from it's rotated back/down position but clearly it does.

In any case I won't be waking up in the middle of the night and taking the gun open and trying to peak inside it with a flashlight.

My wife is very happy about that but still thinks I am compulsive.
 
The disconnect arm is pushed down by the little hump on the bottom of the slide as the the slide moves back during recoil and in turn releases the sear from the little incline hook on the trigger bar.

Bill

IMG_2632.jpg
 
brchambersjr said:
The disconnect arm is pushed down by the little hump on the bottom of the slide as the the slide moves back during recoil and in turn releases the sear from the little incline hook on the trigger bar.

Bill

View attachment 182741
Click to expand...

Yup, I had just realized that. That linear cam allows the sear to pop back up and catch the striker lug as the slide moves forward. You can even see that if you hold the trigger when you rack the slide from a non-cocked condition. Takes a good flashlight and some careful looking to see it. In my case, the CA version, you have to have a magazine in and release the slide while still holding the trigger. It's all very simple once you understand the process.

I was assuming that cam did something during backward movement when it is designed to do it's job during recovery.

Thanks for the help. You helped cap off the whole process.

Now for an afternoon nap.
 
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