The Glock 43X MOS was completely redesigned from the original 43X and features some major improvements. It’s incredibly small, 6.5” overall with the barrel accounting for 3.4”.

GLOCK, Inc.'s Slimline GLOCK 43X and GLOCK 48 are now available in the Modular Optic System (MOS) configuration. These slim 9X19 pistol models feature a micro-optic-ready factory ...

The Glock 43X MOS was completely redesigned from the original 43X and features some major improvements. It’s incredibly small, 6.5” overall with the barrel accounting for 3.4”.