The Glock G20 V MOS is a full-size semi-automatic pistol chambered in 10mm Auto with a 4.61-inch barrel. It has a matte black finish with polymer frame and ships with three magazines at 10-round capacity. The slide is cut for optics via the MOS (Modular Optic System) and includes fixed rear sights. 
 

Key Specifications 

• Brand: Glock 
• Model: G20 V MOS 
• Caliber: 10mm 
• Action: Semi Auto 
• Capacity: 10+1 
• Barrel Length: 4.61 in 
• Color/Finish: Black 
   

Detailed Features 

• MOS optics-ready cut on the slide for direct optic mounting 
• Fixed rear sights installed 
• Polymer frame with matte black finish 
• Ships with 3 magazines 
• Full-size platform in 10mm Auto

Owners of the Glock G20 V MOS tend to highlight the 10mm chambering as the primary draw, noting it fills a niche for those wanting full-size handgun power for woods carry or hunting backup. The MOS cut is appreciated by shooters who want to mount a red dot without sending the slide to a gunsmith, though some note that the MOS adapter plate system adds height to the optic.

The V Series designation gets mixed reactions. Longtime Glock owners familiar with prior G20 generations debate whether the V updates justify the price difference, with the trigger and grip texture being the most discussed changes. Fixed sights are generally seen as adequate but a common first upgrade target.

At the price point, the G20 V MOS competes with other full-size 10mm options. Most owners find the Glock platform's aftermarket support and reliability record to be the deciding factor, even if some wish the stock trigger felt crisper out of the box.