I’m no Glock expert but something sounds backwards to me.
Isn’t the 17 the ‘full size’ 9mm and the 19 the ‘compact short slide & shorted, reduced capacity handgrip’ model??
Therefore wouldn’t this be a 17 frame with a 19 slide and not the other way around as described in the article?
The advantage being larger capacity with a shorter barrel to make clearing body armor easier.
I AM a Glock fan and all I want to see them make next is a 9mm carbine. For twenty years of wanting and waiting and every ShotShow we are denied. Some day.