All BULLETS GO THROUGH WALLS. Pick a common Pistol that is easy to repair and get parts for. you need to study up with some reliable information Read this link http://www.m4carbine.net/showthread.php?t=19887
. I wouldn't buy any of the pistols on your list for the first pistol. You have chosen the 3rd or 4th pistols to get first. IMO everyone should own a high quality 9mm .