I went to GT distributors in Austin to compare the 17.5 and the 19x. I was dead set on a 19x but wanted to compare the two just incase...... The 19X is a beautiful gun. 19X pros vs 17.5: -looks sexy AF<- important 17.7 pros vs 19X: -I was able to get the basic plastic sight model and reuse my Trijicon HDs (GTs slapped them on for free) -before tax was 133 less -slightly longer barrel They are both great guns. I plan on using the gun as a bedside gun and range toy. I also have a surefire x300 on there so the extra barrel length was not a hinderance in any way. Put 150 ads through the pistol yesterday and am very happy with my purchase. I "upgraded " from a gen 4 19 which was great, but since i never CC it, i opted for a larger grip. Only mods I did were installing Glock marine striker spring cups and the glock factory extended mag release.