The Glock G43X MOS8 is a semi-automatic pistol chambered in 9mm with a 3.41-inch barrel. It comes bundled with an Aimpoint COA 3.5 MOA red dot mounted on the optic-ready MOS slide. The pistol has a black polymer frame with an accessory rail, black steel serrated slide, and holds 15 rounds. 
 

Key Specifications 

• Brand: Glock 
• Model: G43X MOS8 
• Caliber: 9mm 
• Action: Semi Auto 
• Capacity: 15 rounds 
• Barrel Length: 3.41 inches 
• Color/Finish: Black 
   

Detailed Features 

• MOS optic-ready slide with Aimpoint COA 3.5 MOA red dot included 
• Black steel serrated slide 
• Black polymer frame with accessory rail 
• Ambidextrous controls 
• Ships with two 15-round magazines

Owners of the G43X MOS8 bundle generally appreciate getting the red dot already fitted and zeroed from the factory rather than sourcing and mounting an optic separately. The Aimpoint COA 3.5 MOA dot is a consistent point of praise; shooters who have used other small red dots note the Aimpoint holds zero reliably under sustained fire. The compact slide and 15-round capacity hit a useful middle point between a true subcompact and a full-size carry gun.

The frame dimensions on the G43X suit shooters with medium hands who find the single-stack variants too narrow. The accessory rail is a practical addition for a light or laser, which pairs well with the optic. A friction point is the polymer Glock trigger, which works well enough for most but draws the usual complaints from those who prefer a lighter or more distinct reset.

Value perception is mixed. The bundle pricing makes the optic feel like a modest premium over a bare MOS slide, but buyers who already own a compatible red dot see the bundle as redundant. The G43X platform has a strong aftermarket, and those who plan to build on the base pistol find the starting point reasonable.