[Chuck Hustmyre]

The Gen 5's are listed with an overall width of 34mm, a 4mm increase over the previous generations. Is that increase due strictly to the ambidextrous slide release or is the frame or slide actually slightly thicker?

 

[MedicineBow]

There's also the flared magazine well on the ones other than the 26.

 

[Buckshot Barry]

It's the ambi slide stop and flared magazine well that increases the width specifications of Gen 5's.

The slide width and general width of the frame is the same as previous generations

 

[Chuck Hustmyre]

I think you guys are onto something with the flared magazine well. Just taking a ruler and crudely measuring the slide lever on my Gen 4 19, the lever itself and the flared protrusion under it, do not stuck out even a full millimeter from the frame. However, looking at the 360-degree picture of the Gen 5 on Glock's website, it's pretty clear that the widest part of the gun is the flared magazine well. I'm glad, because that does not add anything to IWB carry.