I am just about 21 and i am goin to buy a handgun before anything else. I really like what i hear about glocks. I was wondering what OT thought about the different glock models. I will be applying for a permit to CCW so size is a small issue that should be in consideration. thanks for all the info. other makes are also possible. one more thing is a glock 17 which the cal. is 9x19 the same as a 9 mm bullet???