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Old 03-02-2015, 05:34   #1
vaquero aleman
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gen 2 vs gen 3 G20?

I have had both but I never had any aftermarket experience with the gen 2. Can anyone give some insight into how the versions vary when it comes to accessories and other aftermarket considerations? i.e.; will the gen 3 stuff from LWD, glockmeister, etc. work on either version?

Are there any notable differences between the reliability of the gen 2 & 3 when it comes to firing the myriad of 10mm ammo?

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Old 03-02-2015, 08:03   #2
redbaron007
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IIRC, the G2 vs G3 are the same when it comes to the parts, most of the differences are cosmetic (please correct me if I'm incorrect). But if it were me and I had to choose either the G2 or G3, I would lean to the G3, mainly because aftermarket parts are readily available. If you don't like the finger groves, those can be removed.

Just my $.02.



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Old 03-08-2015, 06:45   #3
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The Gen 2's barrels are not as supported as the barrels of the Gen 3. If you are going to shoot some real hot 10mm (Underwood or BB) I would suggest an aftermarket barrel or a Gen 3 Glock barrel.
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Old 03-30-2015, 17:10   #4
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I really love my gen 3 model. I never shot a gen 2 G20.
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Old 03-31-2015, 06:56   #5
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While I've never owned the 20 I have had both the g2 and g3 in G22. I personally prefer the G3 but that may be only because the grooves actually fit my hand.
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Old 04-01-2015, 03:36   #6
vaquero aleman
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I shot the gen 2 I had a couple of times, but it's just a fuzzy memory. What I remember most about it was that I could not get used to the grip. My son wanted it, anyway, so I gave it to him.

This was his idea:
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Last edited by vaquero aleman; 04-01-2015 at 03:40..
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Old 04-02-2015, 10:10   #7
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I purchased an older Gen 2 a few years back from Cabela's used. $350 out the door with 2 mags I couldn't pass it up, I bought all new springs, V4 connector, etc.

I hated the grip, so last year I was playing on gun broker and came across a new never used Gen 3 SF Frame. $120 bucks for the frame. Slide mounted up perfect, and functions perfect.

The barrel has horrible case support, hence if I shoot full power loads I use my KKM Precision 6" barrel.

One thing I can say is this, who ever had the gun before me, replaced the stock striker with a Lightening Strike Titanium striker in it. So old in fact it does not have the gold coating on it, And is still going strong with the abuse I put it through lol.
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Old 04-02-2015, 12:40   #8
MinervaDoe
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I believe that my Gen 2 Glock 21 rides the trigger reset cleanly and without a hitch, while both my Gen 3 Glock 20 and Glock 29 bind the slide from going completely in battery. I believe that someone made a post here one time, that explained which part to swap or polish to fix the issue.

Last edited by MinervaDoe; 04-02-2015 at 12:43..
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