The Glock G43X MOS is a slim subcompact semi-automatic pistol chambered in 9mm with a 3.41-inch barrel and a 10+1 round capacity. The MOS cut allows direct optic mounting without a plate adapter. This variant has a Blue/Black finish on the slim frame. 
 

Key Specifications 

• Brand: Glock 
• Model: G43X MOS 
• Caliber: 9mm 
• Action: Semi Auto 
• Barrel Length: 3.41 in 
• Capacity: 10+1 
• Color/Finish: Blue/Black 
   

Detailed Features 

• MOS (Modular Optic System) cut for direct optic mounting 
• Slim subcompact frame 
• 3.41-inch barrel 
• 10+1 round capacity 
• Blue/Black finish

The Glock G43X MOS is a popular choice for concealed carry, and owners consistently praise its slim profile and comfortable grip length compared to the shorter G43. The MOS cut is a frequently cited reason for choosing this variant, as it allows a red dot to be mounted without a custom milling job.

The Blue/Black finish draws positive comments for its appearance, though some owners note it shows wear at holster contact points faster than a standard black finish. The trigger is typical for the platform, which means opinions are split between those who appreciate its consistent pull and those who immediately swap it for an aftermarket option.

At 10+1 rounds from a slim single-stack-width frame, most owners consider the capacity adequate for a carry pistol of this size. A common request in owner discussions is for a flush-fit extended magazine option, and aftermarket support for the G43X platform is cited as a key advantage.