Why did Glock change the pistols from a single pin to a double pin?
- Thread starter Bexar
- Start date
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Glock changed the 40 pistols over to the two pin design to improve the durability of the locking block and to reduce the peening problem. Then to keep all the 9mm/40/357Sig frames identical to control manufacturing costs, they changed them all over to the two pin design.
If your gun needs the updated firing pin, the firing pin (and trigger bar & firing pin safety) will have a black finish. If the finish on the firing pin, firing pin safety & trigger bar are silver colored then the upgrade has been done already or the pistol is a later model that doesn't need the upgrade.
Here's some additional information.
http://www.glockmeister.com/GlockFactoryUpgrade.asp
http://www.thegunzone.com/glock/upgrade-faq.html
If your gun needs the updated firing pin, the firing pin (and trigger bar & firing pin safety) will have a black finish. If the finish on the firing pin, firing pin safety & trigger bar are silver colored then the upgrade has been done already or the pistol is a later model that doesn't need the upgrade.
Here's some additional information.
http://www.glockmeister.com/GlockFactoryUpgrade.asp
http://www.thegunzone.com/glock/upgrade-faq.html
rcmodel
Member in memoriam
Because Glock Perfection wasn't perfect after all?????
I thought, since the first ones were advertised as 'Perfection' they would never change.
But NOOOoooo!!
Now look where we are at on mods to make them finally, Perfect!!
rc
I thought, since the first ones were advertised as 'Perfection' they would never change.
But NOOOoooo!!
Now look where we are at on mods to make them finally, Perfect!!
rc
improperlyaged
Member
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- May 3, 2013
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- 422
I just recently traded an XD for an early 2nd gen glock 19. Mines was made in Feb 91 and has the single pin design. It has obviously been shot A LOT. I prefer it to my friends gen 3
Jim Watson
Member
The Glock 17 9mm seems to have been as clean an original design as the industry has produced.
It was when those Greedy Americans said they would buy other calibers and barrel lengths that the later models got ordinary.
It was when those Greedy Americans said they would buy other calibers and barrel lengths that the later models got ordinary.
Tommygunn
Member
OK, my curiosity has been piqued; what is ... "doublepin?"
Is this two firing pins? How does 2 firing pins work?
SDC
Member
This is speaking of the two locking-block pins through the frame and locking-block, not of the firing-pin; these anchor the locking-block to the frame.
russianbear
member
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- Feb 14, 2015
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- 75
Can anyone post a picture of the frame with two pins.
Info only. In post 10 is a photo of a G26gen3, which is a 3-pin gun. I'm unaware of any 1-pin Glocks. I'm thinking the OP is wondering about why Glock went from a 2-pin to a 3-pin configuration and the OP said it was a gen2 model which came in 2 and 3 pin versions. Otherwise, post 2 answered the title question. Post 3 answered the 2nd question.
Last edited:
russianbear
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- Feb 14, 2015
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I am only seeing one locking-block retaining pin in picture.
I see the trigger pin and above it the locking-block retaining pin.
I see the trigger pin and above it the locking-block retaining pin.
mgmorden
Member
The trigger pin also secures the locking block.
In older guns, it was the only pin doing so:
Last edited:
russianbear
member
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- Feb 14, 2015
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Thanks mgmorden I was confused about what pins, were involved in the locking block.
Is there pictures showing the three pins being used?
Is there pictures showing the three pins being used?
F-111 John
Member
"One pin" Glocks have two pins, trigger and trigger housing near the back of the grip. "Two pin" Glocks have three pins, trigger, locking block, and trigger housing.
When people refer to "one pin" or "two pin," they're only referring to the locking block pins, not all of the pins in the gun.
When people refer to "one pin" or "two pin," they're only referring to the locking block pins, not all of the pins in the gun.
I had to up and take a pic of my old Gen ll One Pin/Two Pin G19 as the gun is normally on me or nearby when at the hut.
I pack the Gen lll G26 when going into the big cold city.
The was never a one pin only Glock.
Folks who refer to one pin Glocks are referring to the trigger area of a Gen lll up Glock.
Guns referred to as Two Pin Glocks can refer to Gen l or Gen ll Glocks or the number of pins at the trigger area.
My personal preference is to refer to Gen l and Gen ll Glocks as Two Pin Glocks and Gen lll up as Three Pin Glocks. HTH
I pack the Gen lll G26 when going into the big cold city.
The was never a one pin only Glock.
Folks who refer to one pin Glocks are referring to the trigger area of a Gen lll up Glock.
Guns referred to as Two Pin Glocks can refer to Gen l or Gen ll Glocks or the number of pins at the trigger area.
My personal preference is to refer to Gen l and Gen ll Glocks as Two Pin Glocks and Gen lll up as Three Pin Glocks. HTH
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