The Glock 43X MOS is a subcompact 9mm pistol with a 3.41-inch barrel, 10+1 capacity, and factory MOS optics cut. It weighs 22.96 oz and measures 6.5 inches overall. The nDLC black finish covers both frame and slide. 
 

Key Specifications 

• Brand: Glock 
• Model: G43X MOS 
• Caliber: 9mm Luger 
• Action: DAO 
• Capacity: 10+1 rounds 
• Barrel Length: 3.41 inches 
• Overall Length: 6.5 inches 
• Weight: 22.96 oz 
• Sights: Fixed sights 
• Grip Material: Black Textured Polymer 
• Trigger Pull Weight: approximately 5.40 lbs 
• Safety Features: Firing Pin / Trigger Block safety system 
• Finish Color: Black 
   

Detailed Features 

 
The Glock Marksman Barrel provides better accuracy than earlier Glock barrel designs through improved rifling. The MOS cut is factory-machined and accepts several popular optic footprints without modification. Fixed sights are standard for quick acquisition. The firing pin block and trigger safety together prevent firing unless the trigger is deliberately pulled. At 22.96 oz, it's light for all-day carry without feeling insubstantial. 
 

Usage Scenarios 

1. Concealed Carry: Slim profile and compact dimensions work well for IWB carry. 
2. Self-Defense: 10+1 capacity combined with proven Glock reliability. 
3. Training: Manageable recoil and familiar controls suit regular practice sessions.

The Glock 43X MOS draws consistent praise for its compact dimensions combined with the MOS optics cut. Concealed carry users appreciate the slim profile and the ability to run a red dot without additional gunsmithing.

Accuracy and reliability get positive marks consistent with the wider Glock reputation. The grip texture and ergonomics suit most hands, and owners generally find the pistol comfortable to carry all day.

Criticism focuses on the trigger. Some users find the pull heavier or less refined than competing subcompacts, particularly from other manufacturers. The 10+1 capacity is adequate but draws comparisons to competitors that offer more rounds in a similar footprint. Recoil is described as snappier than expected given the lightweight construction. This is inherent to the caliber/size combination and affects newer shooters more. Pricing comes up occasionally, with some buyers expecting lower cost given the compact configuration.