Czechoslovakia might be long gone, but its creation survived, far into the future of giant robots and space colonies. This is ZAFT's Škorpion vz 61 sub-machine gun, with perhaps a compensator or extended barrel up front. It is fed from a 20rds magazine. It can switch between semi auto and full auto firing mode.
ZAFT also uses Glocks and off-brand M1911s, I guess their sidearm arsenal is basically one big 20th century nostalgia trip.
.png/revision/latest?cb=20221105122209){kind=link}
The contrast between super high-tech robots and spaceships, and old (even by today's standard) antique weapons is stark!