Determining "Generation".

It will say Gen4 on the left side of the slide. Gen3 has the mounting rail under the front of the frame

 

Gen 1, 2, 3:


Gen 4:

 

THere is also a Gen 2.5. Finger grooves with no rail....

 

Bumping an old thread here.

How do you determine the generation of ANY Glock? I know I don't have a Gen 4, but how do I know if it's 1, 2 or 3?

 

Go here: http://en.wikipedia.org/wiki/Glock

 

1. Does it have finger grooves?
2. how many pins are above the trigger?

 

There's also a Gen3 30 with finger grooves and no rails lol. If worse comes to worse, call Glock up. They're great at answering questions over the phone.

 

That did the trick! And in case anyone is wondering, I have all 3rd gens.

 

Those are 2.5 gens if im not mistaken...same as the g29s with no rails.

 

You can always post a pic of your glock, determine the gen much faster.