How can a Shield and a Gen3 Glock both feel like they were made to fit your hand? They feel so completely different. It's not just feel, it's circumference (which is not as subjective). My two primary carry guns are my Glock 26 Gen4 and my Shield in 9mm. The grip is so much thinner on the Shield. It just doesn't fill my hand like the Glock so it's nowhere near the comfort and purchase I get with the latter. My Shield carries more comfortably, but my Glock is more comfortable to hold. It's a trade off in my mind. They both shoot and carry well enough, but I would say my Glock carries better than my Shield feels. I have medium sized hands (large glove).