G34 MOS Gen 4 here that performs really well with Holosun SCS. The trigger is very different than all other Glocks on hand. More of a "brick wall" breaking point. Shoots flat and soft! Enjoy yours!
I can still buy a Glock via their blue label program.
Tried a Glock 43X and really like it.
The model 19 in the back is a 5th gen I think.
Still boxed and unfired.