How to tell a Gen1 from a Gen2
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  1. #1
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    How to tell a Gen1 from a Gen2

    I know there are other threads here that cover this, but I took some new pictures today in an attempt to explain the difference to a Gunbroker seller who had incorrectly posted his pistol. One of the great frustrations is an inaccurate YouTube video made by IraqVeteran8888 over 10 years ago. In this video he stated that the way to tell a Gen1 pistol was if it only had one frame pin above the trigger guard. This is inaccurate as Glock used the 2-Pin frame (one above the trigger guard and one in the grip) for 9mm G17 and G19 Gen2 pistols for years, only switching to the 3-Pin frame for .40 S&W and larger calibers. It's pretty obvious that IraqVeteran8888 now knows better but for some reason he will not take the incorrect video down. It is frequently referenced by sellers trying to get more money for their Gen2 by using the video to claim their gun is a Gen1.

    The variations in Glock pistols that owners started classifying amongst themselves as Gen1, Gen2 etc. were not actually officially acknowledged by Glock until they released the Gen4. This does leave some variance in defining transition guns and differences between the full sized and compact frames vs. the sub-compact frames. The single stack 42, 43 don't fit any regular classification. However, this post is not intended to dive into the later generation nuances but instead describe the much cleaner difference between the Gen1 and Gen2.

    It's actually very simple - only the grip texture matters. Original pistols that have an "Orange Peel" or (a.k.a.) "Pebble" textured grip where the texture is consistent all the way around the grip is a Gen1. Glock only imported the G17, 18 and 19 in Gen1 models to the US. The 19 is extremely rare. Any other grip texture is NOT a Gen1. The as of this post date, the exception is the Lipseys P80 - which is supposed to be a remake of the original Glock pistol but not a very accurate one. It has the Orange Peel texturing but can't be considered a Gen1 pistol.

    The Gen2 pistol uses two different textures on the grip. The sides have textured panels and the front and back of the grip have a strip of checkered squares with vertical lines (see picture). When you see the pictures, especially from the rear of the gun, it's hard to imagine why there is any confusion, but there definitely still is.

    So, if you're still not sure what I'm talking about here's a photo of a Gen1 on the left and a Gen2 on the right:




    Here is a side view including both a Gen2 2-pin and 3-pin frames.




    I've not addressed variations in Gen1s like Pencil Barrels, etc. But all Gen1 variations have the same grip texture so for the purpose of telling the difference between a Gen1 and Gen2, this will do. I would encourage anyone to add additional photos, the more examples the better!
    Last edited by MtStream; 09-21-2020 at 03:08 AM.
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  2. #2
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    Great info !

    I am one of those who suffered from the Gen1/Gen2 grip designations.

    Josey Wales: When I get to likin' someone, they ain't around long.
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    Hereís another photo that is used a lot to identify Generations for the standard frames. Iím pretty sure DJ Niner from G***ktalk.com made this.




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    Excellent information @MtStream...
    "While the anti-gunners seem very concerned about the "one life" that your firearm might take -- they are not very concerned about the lives it will save." Jon H. Gutmacher, Florida Firearms - Law, Use & Ownership

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    Great info MtStream! I myself got a bit confused with my G17C as to what Gen it is. Gen 3 as far as I know supposedly has 3 pins. But mine only has 2. I resorted to contacting Glock Austria to get an accurate answer. Per checking on my FA's serial #, it was apparently one of the first G17C made and it was sold back in 2002. And it is in fact a Gen 3.

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    Quote Originally Posted by miami View Post
    Great info MtStream! I myself got a bit confused with my G17C as to what Gen it is. Gen 3 as far as I know supposedly has 3 pins. But mine only has 2. I resorted to contacting Glock Austria to get an accurate answer. Per checking on my FA's serial #, it was apparently one of the first G17C made and it was sold back in 2002. And it is in fact a Gen 3.
    I'd love to see a picture of that gun! The Gen2 to Gen3 was an interesting transition for Glock.
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    Here it is MtStream. This was given to me as a gift. I got a bit confused as to what Gen it was because it does have the finger grooves and grip pattern of a Gen 3, also it has the accessory rail. But it only had 2 pins which confused me because Gen 3's were supposed to have 3 pins. It came with the Tupperware box, and has the adjustable sights that for some reason cannot be zero'ed. lol

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  9. #8
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    Thatís awesome! Iíve never seen a Gen3 2-pin 17c before!!! I think itís great!

    Iím sorry your having problems with the sights, it looks like a great gun!


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  10. #9
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    Yes, overall I am very happy with it. It was given as a gift and it's my very first firearm so it holds a special place in my heart.

    The person who gave it to me said that it's a collector's item. So typically 17c's usually comes with 3 pins?

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    The tupperware box with the trigger mount is early production as well.

    Josey Wales: When I get to likin' someone, they ain't around long.
    Lone Watie: I notice when you get to DISlikin' someone they ain't around for long neither.

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