They are my goto guns in an emergency. I would not want to suffer a level 4 Zombie Apocalypse without them. They never jam, they never complain, they will happily shoot any ammo and they can stand up to lots of abuse.
I have a Glock 17 9mm and a Glock 21 .45 ACP. I do need to get a lot more magazines.
I think I will get a suppressor to for the 9mm and then convert it to an SBR with one of the Hera Arms or EMA Roni conversion kits.
I will then have a silenced 9mm carbine that has the reliability and will eat anything I can feed it.