Yes, it's a new generation of Glocks… the Gen5!

Here is just a short list of the new features. 

New Finish: Glock's nDLC finish is tougher, more durable, and is on both the barrel and the slide.

New Barrel: Glock's "Marksman" barrel feature new rifling for improved accuracy.

No Finger Grooves: Now your fingers go where they want to go… which is not necessarily where the finger grooves were. 

Ambidextrous Slide Stop Lever: Makes it easy to release the slide whether you're shooting right or left handed. 

Flared Magwell: Subtle but effective in quick reloads