New Glock Model 20 15-round magazines.

[gunfan]

Will they fit my Generation #1 Glock Model 20? I certainly hope so.

[sqlbullet]

I have no experience, but my understanding is that Gen 5 mags are no longer compatible with previous generations.  Gen 1-4 will work fine.

[Huntchick]

Ive got a Gen 5 G20 and the Gen 3 and 4 mags fit in the Gen 5 but i don't know if the Gen 5 mag will fit ok in a Gen 1. sorry.

[gunfan]

I've got a Gen 5 G20 and the Gen 3 and 4 mags fit in the Gen 5 but i don't know if the Gen 5 mag will fit ok in a Gen 1. sorry.

I bought my Glock Model 20 a long time ago (about 1992). I just did a little research on Glock Talk and believe that they will fir my early pistol (It is probably Gen 2).

My magazines are due Thursday afternoon. 

[Huntchick]

Well hope they work for you. Let us know how they work out.

[gunfan]

Great news! I called Glock and they told me that The magazines will function perfectly. The only reason a Gen 5 Model 20 may not use the Gen 4 magazines is that they do not have the build that supports an ambidextrous safety "U". If the magazine's left-mounted Magazine release is moved to the right-hand side of the pistol's frame, the magazine will not seat in the pistol's frame.

End of story. 

[Huntchick]

That's great information. Thanks for the update.