To the original post.
Keltec for the fold factor and mag compatibility.
(Magpul has a 50 round drum to fit pistol magazine wells)
OP asked for carbines so I'm throwing out every Uzi, Striborg, Evo, and other faux subguns from my consideration.
As someone else pointed out a Marlin Camp 9 would be my preference if we're all going that route.
(Another option would be the Citadel M1 in 9mm)
Just my 2 pennies worth.
Keltec for the fold factor and mag compatibility.
(Magpul has a 50 round drum to fit pistol magazine wells)
OP asked for carbines so I'm throwing out every Uzi, Striborg, Evo, and other faux subguns from my consideration.
As someone else pointed out a Marlin Camp 9 would be my preference if we're all going that route.
(Another option would be the Citadel M1 in 9mm)
Just my 2 pennies worth.