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Sear/Connector Question

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14K views 27 replies 11 participants last post by  CADguy  
L
#1 ·
Hey guys, I had a question concerning the operation of the sear and connector of a glock. I know once fired that the cam in the slide pushes the connector inward to raise the sear and trigger bar, which allows the striker to push the sear and trigger bar forward that causes the connector to move back out.

Does the sear rest naturally without tension when it is raised up and holding the striker back or when it is lowered?
 
#3 ·
lein said:
Hey guys, I had a question concerning the operation of the sear and connector of a glock. I know once fired that the cam in the slide pushes the connector inward to raise the sear and trigger bar, which allows the striker to push the sear and trigger bar forward that causes the connector to move back out.

Does the sear rest naturally without tension when it is raised up and holding the striker back or when it is lowered?
Click to expand...
The trigger bar only 'rests without tension' after the gun is dry fired and the trigger is fully to the rear.

And, although it appears that you have a good understanding of how the Glock works, there is no 'sear' in a Glock, that function is accomplished by the rear edge of the trigger bar where it engages the firing pin lug.

Also, Welcome to GlockTalk!
Check out my blog! Lots of good info there for those who are 'learning Glock'. Here's one of the posts there:
http://glocktalk.com/forums/blog.php?b=426
 
#4 ·
With the trigger forward and the left side of the cruciform (sear) in the Drop Safety slot (view from the rear) you can see that there is tension on the trigger spring in this picture.


Once the trigger is pulled and the striker released, the tension on the trigger spring is relieved.

Pineapple Devil, if you turn your slide over and look near the rear of the striker, you'll see on the same side as the striker safety (#8 on your pic) a portion of the slide that comes out toward the striker. That's the cam that pushes on the top of the connector.

Dave
 
P
#5 ·
Dave.1 said:
With the trigger forward and the left side of the cruciform (sear) in the Drop Safety slot (view from the rear) you can see that there is tension on the trigger spring in this picture.


Once the trigger is pulled and the striker released, the tension on the trigger spring is relieved.

Pineapple Devil, if you turn your slide over and look near the rear of the striker, you'll see on the same side as the striker safety (#8 on your pic) a portion of the slide that comes out toward the striker. That's the cam that pushes on the top of the connector.

Dave
Click to expand...
Never heard it referred to as a cam
 
G
#12 ·
That little cam allows the trigger cruciform to pop free of the connector and when it pops, the striker lug (sear) rests on the back of the cruciform and as the slide locks into battery another pull of the trigger will fully cock the striker, then release it.

I know most know this but you can also see how someone used to more common terminology would refer to certain parts of a Glock using that jargon.

A sear is the middle man between a trigger and a hammer.
Glocks have no hammer, thus no sear.
Technically a Glock has a striker, not a firing pin but the terms are used interchangeably.

For the technically minded, have you seen or pondered how the G-18 changes the dynamic acting only within the slide? Very clever.
 
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#13 ·
Green Team said:
Technically a Glock has a striker, not a firing pin but the terms are used interchangeably.
Click to expand...
The maker of the device gets to assign the term for any part in the device. In Glock's terminology, there is no part called a striker...it is a firing pin. There is no slide release...it is a slide stop lever. To keep everyone in an exchange about Glocks in synch, standard Glock terminology is helpful. It also indicates that the speaker has at least minimal familiarity with the Glock system.

The Glock terminology for any part may be found in the exploded parts diagram in every Glock Owner's Manual and in the Glock Armorers' Parts List.

Oddly enough, the cam structure built into the bottom surface of the slide is termed differently by Glock in some Glock documents. In the Owner's Manual, it is called a ramp. In the Armorer's Manual it is called a cam. I like the latter term, for it better describes the function that it serves.
 
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#14 · (Edited)
Butch said:
.... there is no 'sear' in a Glock, that function is accomplished by the rear edge of the trigger bar where it engages the firing pin lug.
Click to expand...
I know that you are considered the master here, and indeed you are very knowledgeable, but with all due respect, there is a sear in a Glock pistol (but not the e-tool).

According to SAAMI:

SEAR - A part which retains the hammer or striker in the cocked position. When released, it permits firing.
Click to expand...
And although Wikipedia may not always be the best reference, here their definition:

In a firearm, the sear is the part of the trigger mechanism that holds the hammer, striker or bolt back until the correct amount of pressure has been applied to the trigger; at which point the hammer, striker or bolt is released to discharge the weapon. The sear may be a separate part or can be a surface incorporated into the trigger.
Click to expand...
There is no separate part that is a sear, but rather it is incorporated into the trigger bar.
 
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G
#15 ·
Mike-M said:
The maker of the device gets to assign the term for any part in the device. In Glock's terminology, there is no part called a striker...it is a firing pin. There is no slide release...it is a slide stop lever. To keep everyone in an exchange about Glocks in synch, standard Glock terminology is helpful. It also indicates that the speaker has at least minimal familiarity with the Glock system.

The Glock terminology for any part may be found in the exploded parts diagram in every Glock Owner's Manual and in the Glock Armorers' Parts List.

Oddly enough, the cam structure built into the bottom surface of the slide is termed differently by Glock in some Glock documents. In the Owner's Manual, it is called a ramp. In the Armorer's Manual it is called a cam. I like the latter term, for it better describes the function that it serves.
Click to expand...
I don't disagree and well said but my reason of input here was due to the comment in regard to the OP not giving the correct nomenclature. Seemingly if he didn't use the correct terms there would be no answer. I find that unnecessary.

And I suppose the maker does have the right to name their own parts but many of us who have worked on all manner of pistols for a few decades have come to accept a certain generality of technical jargon and a sear or sear notch is a name given to the contact point in the hammer or striker where the striker is held in full cock then released. So even though there is no sear in the gun the terminology is still valid. In my ever so humble opinion.
 
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#16 ·
G
#17 ·
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#18 ·
Green Team said:
...my VP 70 has a firing pin.
Click to expand...
VP-70?? I didn't know anybody actually had one of those! I thought they all got used up for Aliens. :cool:

About the VP-70: "...it is mentioned by one of the film's armorers that the VP-70 was chosen as the standard issue sidearm for the Colonial Marines because of its "futuristic look" as well as its relative obscurity." I always wondered why this 1986 production did not use the most logical handgun to represent one from 200 years in the future...a Glock 17 or 18, of course! But a French-looking blowback 9x19mm like a VP-70??? Blah!
 
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G
#19 ·
Mike-M said:
VP-70?? I didn't know anybody actually had one of those! I thought they all got used up for Aliens. :cool:

About the VP-70: "...it is mentioned by one of the film's armorers that the VP-70 was chosen as the standard issue sidearm for the Colonial Marines because of its "futuristic look" as well as its relative obscurity." I always wondered why this 1986 production did not use the most logical handgun to represent one from 200 years in the future...a Glock 17 or 18, of course! But a French-looking blowback 9x19mm like a VP-70??? Blah!
Click to expand...
It is a rather obscure firearm. They are very well made and very accurate inspire of it's rather long heavy trigger pull. I have soften mine up somewhat and i shoot the gun fairly well. I found it with the box and two mags for $300 a few years ago. Looks new. It is tough and rugged. A fine example of a polymer, striker fired......I mean, spring loaded, trigger cocked, full sized, high capacity wonder nine. And it looks to be the one gun to be reverse engineered by any alien force and brought to this planet.:rofl:
 
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#20 ·
Green Team said:
Ok. Got it Glocks have firing pins. Mausers have firing pins. my VP 70 has a firing pin. Strikers un zi verbotten!!
Click to expand...
:thumbsup:

I prefer to keep it simple....guns have firing pins....a pin that fires a primer.

Strikers play soccer, ring bells, and refuse to go to work.

:)
 
G
#22 ·
Butch said:
:thumbsup:

I prefer to keep it simple....guns have firing pins....a pin that fires a primer.

Strikers play soccer, ring bells, and refuse to go to work.

:)
Click to expand...
I realize some people need things to be simple, I don't. The truth is that pistol without hammers have been referred to as striker fired for well over a century. It is common terminology and as such it is correct to reference the spring-loaded firing pin of a Glock pistol as a striker.
 
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G
#25 ·
skip4309 said:
We use the term 'motor' and 'engine' interchangeably today...years ago they had different meanings...just saying....
Click to expand...
The Glock firing pin and a striker are the same thing.
A motor (electric) and an internal combustion engine are not.
I think this is just Glock cool aid.
 
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#26 ·
Yer all entitled to your opinions, but so am I...here it is from a previous post: http://glocktalk.com/forums/showpost.php?p=20788204&postcount=24

And, just because SIG has finally 'invented' their own GLOCK clone, they're calling the firing pin a striker doesn't make it correct.

Now, I'm gonna go try to start the internal combustion motor on my lawn mower.... ;)
 
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